CN102622154B - Capacitance type touch-control panel - Google Patents

Capacitance type touch-control panel Download PDF

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Publication number
CN102622154B
CN102622154B CN201210127546.4A CN201210127546A CN102622154B CN 102622154 B CN102622154 B CN 102622154B CN 201210127546 A CN201210127546 A CN 201210127546A CN 102622154 B CN102622154 B CN 102622154B
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CN
China
Prior art keywords
direction sensing
control panel
capacitance type
type touch
electrode
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Expired - Fee Related
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CN201210127546.4A
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Chinese (zh)
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CN102622154A (en
Inventor
刘鹄仪
黄仕泓
陈鸿祥
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CPTF Visual Display Fuzhou Ltd
Chunghwa Picture Tubes Ltd
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CPTF Visual Display Fuzhou Ltd
Chunghwa Picture Tubes Ltd
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Priority to CN201210127546.4A priority Critical patent/CN102622154B/en
Publication of CN102622154A publication Critical patent/CN102622154A/en
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Abstract

The present invention relates to a kind of capacitance type touch-control panel, comprise: substrate, plural row first direction sensing electrode, several column second direction sensing electrode and optical compensation structure.Each to be in the ranks in series with syndeton between every two adjacent first direction sensing electrodes.Second direction sensing electrode and first direction sensing electrode interlock adjacent, are in series between each row between every two adjacent second direction sensing electrodes with the bridging structure not contacting syndeton.Electrode gap is comprised between each second direction sensing electrode and staggered adjacent each first direction sensing electrode.Optical compensation structure is formed in electrode gap, has specific thicknesses to make the penetrability of first and second sensing direction electrode and optical compensation structure close.

Description

Capacitance type touch-control panel
Technical field
The invention relates to a kind of contact panel technology, and relate to a kind of its penetrability of optical compensation structure with specific thicknesses capacitance type touch-control panel close with the penetrability of sensing electrode especially.
Background technology
Along with consumption electronic products are extensively by popular welcome, the portable electric device such as intelligent mobile phone and flat computer is constantly weeded out the old and bring forth the new, and drives the progress of correlation technique.Wherein, intuitive touch-control input mode becomes the main flow input technology of these electronic products.Wherein, according to different principles, contact panel can divide into the types such as condenser type, resistance-type, acoustic wave.Wherein capacitance type touch-control panel is a kind of technology come into one's own most at present.
Capacitance type touch-control panel is by the sensing electrode of criss-cross arrangement, and when conductor or finger touch substrate, electrostatic will cause electrical change, and be detected by sensing electrode, and then judge position of touch.But for avoiding the erroneous judgement of sense position between sensing electrode, by formation gap to reach the effect of insulation.Width as gap is too small, then easily cause sensing signal characteristic not good, the degree of accuracy of impact sensing and sensitivity.But the width in gap is as excessive, then sensing electrode is easily caused on panel, to present obvious check phenomenon from the different penetrance in gap.
Therefore, how designing a new capacitance type touch-control panel, to solve the above problems, is an industry problem demanding prompt solution for this reason.
Summary of the invention
Therefore, the object of this invention is to provide a kind of capacitance type touch-control panel, it comprises: substrate, plural row first direction sensing electrode, several column second direction sensing electrode and optical compensation structure.Each to be in the ranks in series with syndeton between every two adjacent first direction sensing electrodes.Second direction sensing electrode and first direction sensing electrode interlock adjacent, and be in series with the bridging structure not contacting syndeton between every two adjacent second direction sensing electrodes between each row, wherein comprise electrode gap between each second direction sensing electrode and staggered adjacent each first direction sensing electrode.Optical compensation structure is formed in electrode gap, in order to do having specific thicknesses, to make first and second sensing direction electrode identical with the penetrability essence of optical compensation structure.
According to one embodiment of the invention, be wherein formed with insulation course between syndeton and bridging structure.
According to another embodiment of the present invention, wherein the material of insulation course is organic photoresistance or silicon dioxide.
According to further embodiment of this invention, insulation course and optical compensation structure are formed with same substance simultaneously.
According to yet another embodiment of the invention, the syndeton wherein between every two adjacent first direction sensing electrodes is formed on substrate, and insulation course is formed in syndeton.
The embodiment had more according to the present invention, wherein bridging structure is by the every two adjacent second direction sensing electrodes of cross-over connection on insulation course.
The embodiment had again according to the present invention, wherein insulation course is coated in fact on syndeton and first and second sensing direction electrode, and bridging structure is bored a hole with the every two adjacent second direction sensing electrodes of cross-over connection on insulation course.
According to one embodiment of the invention, wherein bridging structure is formed on substrate, and insulation course is formed on bridging structure, and syndeton is by the every two adjacent first direction sensing electrodes of cross-over connection on insulation course.Bridging structure is metal wire or electro-conductive glass.
According to another embodiment of the present invention, wherein optical compensation structure fills up electrode gap.
According to further embodiment of this invention, capacitance type touch-control panel more comprises protective seam, is coated on first direction sensing electrode, second direction sensing electrode and optical compensation structure.
According to yet another embodiment of the invention, wherein first direction sensing electrode and second direction sensing electrode are electrically connected mutually with cabling respectively, are electrically connected further by cabling and sensing circuit.
Applying advantage of the present invention is be to make the first direction sensing electrode in capacitance type touch-control panel and the electrode gap between second direction sensing electrode by the setting of optical compensation structure, reach effect that optical characteristics is close, avoid the generation of check on panel, and reach above-mentioned object easily.
Accompanying drawing explanation
For above and other objects of the present invention, feature, advantage and embodiment can be become apparent, being described as follows of institute's accompanying drawings:
Figure 1A is in one embodiment of the invention, a kind of vertical view of capacitance type touch-control panel;
Figure 1B is in one embodiment of the invention, the partial enlarged drawing of the capacitance type touch-control panel in Figure 1A;
Fig. 2 A in Figure 1B illustrate part capacitance type touch-control panel along the cut-open view in A-A direction;
Fig. 2 B in Figure 1B illustrate part capacitance type touch-control panel along the cut-open view in B-B direction;
Fig. 2 C in Figure 1B illustrate part capacitance type touch-control panel along the cut-open view in C-C direction;
Fig. 3 is in another embodiment of the present invention, the partial enlarged drawing of the capacitance type touch-control panel in Figure 1A;
Fig. 4 A in Fig. 3 illustrate part capacitance type touch-control panel along the cut-open view in A-A direction;
Fig. 4 B in Fig. 3 illustrate part capacitance type touch-control panel along the cut-open view in B-B direction;
Fig. 4 C in Fig. 3 illustrate part capacitance type touch-control panel along the cut-open view in C-C direction;
Fig. 5 is in further embodiment of this invention, the partial enlarged drawing of the capacitance type touch-control panel in Figure 1A;
Fig. 6 A in Fig. 5 illustrate part capacitance type touch-control panel along the cut-open view in A-A direction;
Fig. 6 B in Fig. 5 illustrate part capacitance type touch-control panel along the cut-open view in B-B direction; And
Fig. 6 C in Fig. 5 illustrate part capacitance type touch-control panel along the cut-open view in C-C direction.
[primary clustering symbol description]
1: capacitance type touch-control panel
100a: syndeton
102: second direction sensing electrode
106: bridging structure
12: cabling
122: protective seam 100: first direction sensing electrode
101: electrode gap
104: insulation course
108: optical compensation structure
120: substrate
14: sensing circuit.
Embodiment
Please refer to Figure 1A.Figure 1A is in one embodiment of the invention, a kind of vertical view of capacitance type touch-control panel 1.Capacitance type touch-control panel 1 comprise be denoted as Y1, Y2 ... the plural row first direction sensing electrode 100 of Ym, be denoted as X1, X2 ... the several column second direction sensing electrode 102 of Xn, cabling 12 and sensing circuit 14.
Y1, Y2 ... the first direction sensing electrode 100 of each row of Yn is in series along first direction, and X1, X2 ... the second direction sensing electrode that Xn respectively arranges 102 is in series along second direction.Capacitance type touch-control panel 1 is by the first direction sensing electrode 100 of criss-cross arrangement and second direction sensing electrode 102, when conductor or finger touch substrate, electrostatic will cause electrical change, and be detected by first direction sensing electrode 100 and second direction sensing electrode 102.The signal sensed is sent to sensing circuit 14 by cabling 12 by first direction sensing electrode 100 and second direction sensing electrode 102 further, and then judges position of touch by sensing circuit 14.
Referring to Figure 1B, Fig. 2 A, Fig. 2 B and Fig. 2 C.Figure 1B is in one embodiment of the invention, the partial enlarged drawing of the capacitance type touch-control panel 1 in Figure 1A.Fig. 2 A, Fig. 2 B and Fig. 2 C to be then respectively in Figure 1B illustrate part capacitance type touch-control panel 1 along A-A direction, the cut-open view in B-B direction and C-C direction.As shown in Figure 1B, Fig. 2 A, Fig. 2 B and Fig. 2 C, capacitance type touch-control panel 1, except first direction sensing electrode 100 and second direction sensing electrode 102, comprises further: substrate 120, syndeton 100a, insulation course 104, bridging structure 106 and optical compensation structure 108.
First direction sensing electrode 100 is formed on substrate 120.Between every two adjacent first direction sensing electrodes 100, be in series with syndeton 100a.In the present embodiment, syndeton 100a is identical material with first direction sensing electrode 100, can be formed on substrate 120 with first direction sensing electrode 100 simultaneously.
Second direction sensing electrode 102 and first direction sensing electrode 100 interlock adjacent, are also formed on substrate 120.Be in series with the bridging structure 106 not contacting syndeton 100a between every two adjacent second direction sensing electrodes 102.In an embodiment, bridging structure 106 can be formed by metal wire.In other embodiment, bridging structure 106 also can by the transparency electrode of material identical with second direction sensing electrode 102 as tin indium oxide (ITO) be formed.In an embodiment, between syndeton 100a and bridging structure 106, insulation course 104 can be formed with to avoid the two Contact.Therefore, bridging structure 106 can by the mode of cross-over connection, makes mutually to be electrically connected between every two adjacent second direction sensing electrodes 102.It is noted that in the present embodiment, first direction sensing electrode 100 and second direction sensing electrode 102 illustrate with rhombus, but in other embodiment, also may realize with other shape.
Electrode gap 101 is comprised between each second direction sensing electrode 102 and staggered adjacent each first direction sensing electrode 100.Optical compensation structure 108 is formed in electrode gap 101, in order to do having specific thicknesses, to make first and second sensing direction electrode 100 and 102 identical with the penetrability essence of optical compensation structure 108.It is noted that above-mentioned " essence is identical " refers to the fine difference that can to have between the penetrability of optical compensation structure 108 and first and second sensing direction electrode 100 and 102 in the reasonable scope, be not limited to identical.
In an embodiment, the thickness of first and second sensing direction electrode 100 and 102, when 150-200 dust, can reach the penetrability of 96%-97%.Therefore, optical compensation structure 108 as with insulating material as organic photoresistance or silicon dioxide realize time, the penetrability of about slightly 97% can be reached when thickness is 2900 dust.Therefore, optical compensation structure 108 can reach and make the region of electrode gap 101 have effect identical with first and second sensing direction electrode 100 and 102 penetrability essence, avoids the check phenomenon that capacitance type touch-control panel 1 causes due to penetrability difference.And, because optical compensation structure 108 can be formed by isolation material, being electrically interfered between first and second sensing direction electrode 100 and 102 can be avoided by the optical compensation structure 108 of isolation material when width is less, and when width is larger, then can be made up the shortcoming of its optical characteristics deficiency by optical compensation structure 108, therefore the width design of electrode gap 101 more flexibly adjusts and design according to required sensitivity and degree of accuracy.
In an embodiment, optical compensation structure 108 can with the aforementioned insulation course 104 be positioned between syndeton 100a and bridging structure 106 be same material as the organic photoresistance insulated or silicon dioxide material, and to be formed in processing procedure simultaneously.Meaning namely, optical compensation structure 108 and insulation course 104 can be formed at after on substrate 120 at first direction sensing electrode 100 and second direction sensing electrode 102, be formed between electrode gap 101 and on syndeton 100a simultaneously, more then by formation bridging structure 106, second direction sensing electrode 102 be in series.In the present embodiment, protective seam 122 further will be formed and be coated on first direction sensing electrode 100, second direction sensing electrode 102 and optical compensation structure 108, to provide capacitance type touch-control panel 1 protective effect.
It is noted that in an embodiment, optical compensation structure 108 is formed in electrode gap 101, still can as in 1B figure illustrate, do not fill up electrode gap 101 completely and the gap of possessing slightly.Or optical compensation structure 108 can fill up electrode gap 101 further completely, to avoid the generation of trickle check.
Referring to Fig. 3, Fig. 4 A, Fig. 4 B and Fig. 4 C.Fig. 3 is in another embodiment of the present invention, the partial enlarged drawing of the capacitance type touch-control panel 1 in Figure 1A.Fig. 4 A, Fig. 4 B and Fig. 4 C to be then respectively in Fig. 3 illustrate part capacitance type touch-control panel 1 along A-A direction, the cut-open view in B-B direction and C-C direction.
In the present embodiment, syndeton 100a, as previous embodiment, is identical material with first direction sensing electrode 100, and can be formed on substrate 120 with first direction sensing electrode 100 simultaneously.But in the present embodiment, insulation course 104 is coated in fact on syndeton 100a and the first and second sensing direction electrodes 100 and 102 and (is the clear relation illustrating first and second sensing direction electrode 100 and 102 and optical compensation structure 108, does not show insulation course 104 in Fig. 3).Therefore, bridging structure 106 can be bored a hole with the every two adjacent second direction sensing electrodes 102 of cross-over connection in the present embodiment on insulation course 104.Similarly, in the present embodiment, optical compensation structure 108 and insulation course 104 can be formed by same substance simultaneously.Finally, protective seam 122 further will be formed and be coated on first direction sensing electrode 100, second direction sensing electrode 102 and optical compensation structure 108, to provide capacitance type touch-control panel 1 protective effect.
It is also noted that in an embodiment, optical compensation structure 108 is formed in electrode gap 101, still can show as depicted in fig. 3, do not fill up electrode gap 101 completely and the gap of possessing slightly.Or optical compensation structure 108 can fill up electrode gap 101 further completely, to avoid the generation of trickle check.
Referring to Fig. 5, Fig. 6 A, Fig. 6 B and Fig. 6 C.Fig. 5 is in further embodiment of this invention, the partial enlarged drawing of the capacitance type touch-control panel 1 in Figure 1A.Fig. 6 A, Fig. 6 B and Fig. 6 C to be then respectively in Fig. 5 illustrate part capacitance type touch-control panel 1 along A-A direction, the cut-open view in B-B direction and C-C direction.
In the present embodiment, bridging structure 106 is first formed on substrate 120.After then forming first and second sensing direction electrode 100 and 102, insulation course 104 will be formed on bridging structure 106, and optical compensation structure 108 will be formed between electrode gap 101.Then, syndeton 100a is by by the every two adjacent first direction sensing electrodes 100 of cross-over connection on insulation course 104.Finally, protective seam 122 further will be formed and be coated on first direction sensing electrode 100, second direction sensing electrode 102 and optical compensation structure 108, to provide capacitance type touch-control panel 1 protective effect.
It is also noted that in an embodiment, optical compensation structure 108 is formed in electrode gap 101, still can as in Fig. 5 illustrate, do not fill up electrode gap 101 completely and the gap of possessing slightly.Or optical compensation structure 108 can fill up electrode gap 101 further completely, to avoid the generation of trickle check.
From above-described embodiment, capacitance type touch-control panel 1 of the present invention can reach by optical compensation structure 108 and make electrode gap 101 close with the optical characteristics of first and second sensing direction electrode 100 and 102, effect that particularly transmittance essence is identical, avoids the generation of check on panel.Further, the formation of optical compensation structure 108 can be carried out with the processing procedure of insulation course 104 simultaneously, and can realize from various different process integration, can not increase manufacturing cost.
Although the present invention discloses as above with embodiment; so itself and be not used to limit the present invention, anyly have the knack of this those skilled in the art, without departing from the spirit and scope of the present invention; when being used for a variety of modifications and variations, therefore protection scope of the present invention is when being as the criterion depending on the accompanying claim person of defining.

Claims (9)

1. a capacitance type touch-control panel, is characterized in that, comprises:
One substrate;
Plural number row first direction sensing electrode, is respectively in the ranks in series with a syndeton between every two adjacent those first direction sensing electrodes;
Several column second direction sensing electrode, interlock adjacent with this plural row first direction sensing electrode, be in series with the bridging structure not contacting this syndeton between every two adjacent those second direction sensing electrodes between each row, wherein comprise an electrode gap between those second direction sensing electrodes each and staggered adjacent those first direction sensing electrodes each, between this described syndeton and this bridging structure, be formed with an insulation course; And
One optical compensation structure, is formed in this electrode gap, to make those first and second sensing direction electrodes identical with the penetrability of this optical compensation structure; This described insulation course and this optical compensation structure are formed with same substance simultaneously, and this described optical compensation structure fills up this electrode gap.
2. capacitance type touch-control panel according to claim 1, is characterized in that: wherein the material of this insulation course is organic photoresistance or silicon dioxide.
3. capacitance type touch-control panel according to claim 1, is characterized in that: this syndeton wherein between every two adjacent those first direction sensing electrodes is formed on this substrate, and this insulation course is formed in this syndeton.
4. capacitance type touch-control panel according to claim 1, is characterized in that: wherein this bridging structure is by every two adjacent those second direction sensing electrodes of cross-over connection on this insulation course.
5. capacitance type touch-control panel according to claim 1, it is characterized in that: wherein this insulation course is coated on this syndeton and those first and second sensing direction electrodes, this bridging structure is bored a hole with every two adjacent those second direction sensing electrodes of cross-over connection on this insulation course.
6. capacitance type touch-control panel according to claim 1, it is characterized in that: wherein this bridging structure is formed on this substrate, this insulation course is formed on this bridging structure, and this syndeton is by every two adjacent those first direction sensing electrodes of cross-over connection on this insulation course.
7. capacitance type touch-control panel according to claim 1, is characterized in that: this bridging structure is a metal wire or an electro-conductive glass.
8. capacitance type touch-control panel according to claim 1, is characterized in that: more comprise a protective seam, is coated on this plural row first direction sensing electrode, this several column second direction sensing electrode and this optical compensation structure.
9. capacitance type touch-control panel according to claim 1, it is characterized in that: wherein this plural row first direction sensing electrode and this several column second direction sensing electrode are electrically connected mutually with a cabling respectively, are electrically connected further by this cabling and a sensing circuit.
CN201210127546.4A 2012-04-27 2012-04-27 Capacitance type touch-control panel Expired - Fee Related CN102622154B (en)

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TWI515778B (en) * 2012-12-20 2016-01-01 恆顥科技股份有限公司 Touch electrode device
CN103176683A (en) * 2013-04-03 2013-06-26 大连七色光太阳能科技开发有限公司 Touch screen electric conduction bridging
CN104142745A (en) * 2013-05-09 2014-11-12 瀚宇彩晶股份有限公司 Touch panel and touch display
CN104423749B (en) * 2013-09-06 2018-03-13 宸鸿光电科技股份有限公司 Capacitance type touch-control panel
EP2863290B1 (en) * 2013-10-18 2017-12-06 Applied Materials, Inc. Layer stack for a touch panel and method for forming a layer stack
CN106125972A (en) * 2016-06-12 2016-11-16 京东方科技集团股份有限公司 The manufacture method of protective layer, array base palte and preparation method thereof and touch screen
CN108491108A (en) * 2018-03-26 2018-09-04 业成科技(成都)有限公司 Tool improves the touch control electrode bridging structure of visual effect

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CN102385461A (en) * 2010-08-30 2012-03-21 华森电子科技股份有限公司 Projecting capacitor type touch panel and manufacture method thereof

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CN102346609A (en) * 2010-08-03 2012-02-08 群康科技(深圳)有限公司 Display system with capacitive touch panel and manufacturing method thereof
CN102385461A (en) * 2010-08-30 2012-03-21 华森电子科技股份有限公司 Projecting capacitor type touch panel and manufacture method thereof

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