CN202394199U - Touch device - Google Patents
Touch device Download PDFInfo
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- CN202394199U CN202394199U CN2011204412981U CN201120441298U CN202394199U CN 202394199 U CN202394199 U CN 202394199U CN 2011204412981 U CN2011204412981 U CN 2011204412981U CN 201120441298 U CN201120441298 U CN 201120441298U CN 202394199 U CN202394199 U CN 202394199U
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- light shield
- shield layer
- sensing electrode
- control device
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Abstract
The utility model relates to the field of touch technology, and provides a touch device, which is provided with an induction zone and a peripheral zone and comprises a sensing electrode layer, a shading layer and a signal transmitting line. The shading layer is positioned in the peripheral zone, is disposed on the sensing electrode layer, is provided with a sunken portion and completely shields the peripheral zone, and the signal transmitting line is arranged on the shading layer, is filled in the sunken portion and is electrically conducted with the sensing electrode layer via the portion, below the sunken portion, of the shading layer. In addition, an embodiment of the utility model further provides a method for manufacturing the touch device.
Description
Technical field
The utility model system is particularly to contactor control device and manufacturing approach thereof relevant for touch technology.
Background technology
In recent years, contactor control device becomes topmost input interface gradually, is widely used in the various electronic products, for example mobile phone, personal digital assistant (PDA) or palm PC etc.Contactor control device generally includes substrate and some inner members; Like sensing electrode, black photoresist layer and touch-control Communication signal wire etc.; Wherein, substrate itself provides protection and the function of carrying those inner members, and is formed with induction zone on the substrate and around the surrounding zone of this induction zone.Sensing electrode is arranged on the induction zone and surrounding zone of substrate; Then cover one deck black photoresist layer on the sensing electrode of surrounding zone; In the black photoresist layer, form the hole that runs through then; And in the through hole of black photoresist layer filled conductive glue, make sensing electrode and the touch-control Communication signal wire that is formed on the black photoresist layer produce electrically connect.
Yet the conducting resinl and the black photoresist layer that are filled in the through hole have the aberration problem, so the through hole of black photoresist layer can cause the bad order of traditional contactor control device.
The utility model content
Because the problems referred to above that known techniques exists; The purpose of the utility model is to provide contactor control device and manufacturing approach thereof; By depressed part is set in light shield layer; And make the light shield layer of depressed part below have the function that electrically conducts and cover, and then overcome the bad order problem of traditional contactor control device.
According to one of the utility model embodiment, a kind of contactor control device is provided, comprising: the sensing electrode layer is arranged at induction zone and reaches the surrounding zone around induction zone; Light shield layer covers this sensing electrode layer in the surrounding zone and has a depressed part; Signal transmission line is arranged on the light shield layer, and fills depressed part, and wherein signal transmission line electrically conducts via the light shield layer and the sensing electrode layer of depressed part below.
According to another embodiment of the utility model, the manufacturing approach of contactor control device is provided, contactor control device has induction zone and centers on the surrounding zone of induction zone, and the method comprises: form the sensing electrode layer in induction zone and surrounding zone; On the sensing electrode layer of surrounding zone, form light shield layer; Surface at light shield layer forms depressed part; And on light shield layer, form signal transmission line, and signal transmission line is filled in the depressed part, makes signal transmission line electrically conduct via the light shield layer and the sensing electrode layer of depressed part below.
The light shield layer of the utility model is by depressed part is set; Promptly regulate the impedance that light shield layer thickness changes light shield layer; Reach vertical conducting whether control, therefore need not form the hole that runs through, can make signal transmission line and sensing electrode layer produce and electrically conduct at light shield layer.Compared to the light shield layer structure of traditional contactor control device, the light shield layer of the utility model embodiment can be avoided the problem of contactor control device generation bad order, improves the product yield of contactor control device.
Description of drawings
Fig. 1 shows the diagrammatic cross-section of the contactor control device that is illustrated according to one of the utility model embodiment.
Fig. 2 A to Fig. 2 E figure system illustrates the diagrammatic cross-section in each stage of the contactor control device of shop drawings 1 according to one of the utility model embodiment.
The main element symbol description
100～contactor control device; 100A～induction zone;
100B～surrounding zone; 102～protection enclosing cover;
104～sensing electrode layer; 104X, 104Y～sensing electrode pattern;
106～light shield layer; 106A～first light shield layer;
106B～second light shield layer; 108～insulation division;
109～bonding line; 110～signal transmission line;
112～depressed part; 114～protective seam;
Embodiment
For let the utility model above-mentioned purpose, characteristic, and advantage can be more obviously understandable, below cooperate appended graphicly, elaborate as follows:
Consult Fig. 1, it shows according to one of the utility model embodiment, the diagrammatic cross-section of contactor control device 100.Contactor control device 100 for example can be capacitive touch device, the surrounding zone 100B that has induction zone 100A and center on induction zone 100A.
The touch control component of the contactor control device 100 of the utility model embodiment is arranged on the protection enclosing cover 102 (touch on lens); The outer surface of protection enclosing cover 102 is the touching face of contactor control device 100, and the material of protection enclosing cover 102 for example is tempered glass or other suitable materials.Induction electrode layer 104 is arranged on the inner surface of protection enclosing cover 102; The material of induction electrode layer 104 is a transparent conductive material; For example be tin indium oxide (indium tin oxide, ITO), indium zinc oxide (indium zinc oxide, IZO) with aluminum zinc oxide (aluminum zinc oxide; AZO) or other transparent conductive materials that are fit to, the long-pending processing procedure in Shen capable of using and little shadow and etch process formation induction electrode layer 104.
Alleged in the following description orientation " on " and D score system with protection enclosing cover 102 below direction indication, these orientation only are to be used for representing the position relation that each element is relative.
According to the embodiment of the utility model, light shield layer 106 is arranged on the induction electrode layer 104, and is positioned at surrounding zone 100B, and the material of light shield layer 106 for example is black photoresistance or black printing printing ink.For the electrical variation with induction electrode layer 104 induction is sent to the signal processor (not drawing) of contactor control device 100, needs to produce with induction electrode layer 104 and electrically connect by the follow-up signal transmission line 110 that is formed on the light shield layer 106.The signal processor of contactor control device 100 can carry out the calculating of touching signals, then touching signals is sent to display device (not drawing), makes display device according to the touching signals show image.
According to the embodiment of the utility model, the surface of light shield layer 106 has depressed part 112, and depressed part 112 does not run through light shield layer 106, and light shield layer 106 can fully cover surrounding zone 100B.Because light shield layer 106 does not have hole, therefore can not influence the outward appearance of contactor control device 100.
In addition; Can regulate the thickness of light shield layer 106 subregions by the design of depressed part 112, as shown in Figure 1, the zone of light shield layer 106 below depressed part 112 has first thickness h 1; Zone beyond below depressed part 112 then has second thickness h, 2, the first thickness h 1 less than second thickness h 2.Thickness by regulating light shield layer 106 can change the impedance of light shield layer 106, and the impedance in light shield layer 106 zones that thickness is thin more is more little, therefore has the effect that electrically conducts; The impedance in light shield layer 106 zones of thicker is big more, therefore has the effect that is electrically insulated.
Embodiment according to the utility model; Need produce thickness to the first thickness h 1 of the position attenuate light shield layer 106 that electrically conducts with induction electrode layer 104 at signal transmission line 110; Form depressed part 112; Make the light shield layer 106 that is positioned at depressed part 112 belows have the effect that electrically conducts at longitudinal direction, longitudinal direction is the direction perpendicular to light shield layer 106 surfaces, and while thickness is the effect that the light shield layer 106 of first thickness h 1 is also possessed shield lights.In addition, be positioned at the zone beyond depressed part 112 belows, thickness is that 106 of the light shield layers of second thickness h 2 vertically and laterally all have the effect that is electrically insulated.Therefore, the zone that the light shield layer 106 of the utility model embodiment can reach below depressed part 112 has vertical conducting, and other zones then have the effect of insulation.
In contactor control device 100, the signal transmission line 110 that is positioned at surrounding zone 100B is arranged on the light shield layer 106, and is filled in the depressed part 112, and signal transmission line 110 can electrically conduct with sensing electrode layer 104 via the light shield layer 106 of depressed part 112 belows.Therefore, the electrical variation that senses of sensing electrode layer 104 is sent to outside IC (not drawing) via the light shield layer 106 and the signal transmission line 110 of depressed part 112 belows.Signal transmission line 110 is normally formed by plain conductor, and its resistance value very I is ignored, so the longitudinal impedance value of the light shield layer 106 of depressed part 112 belows need deduct the resistance value of sensing electrode layer 104 less than the resistance value that outside IC allows.
In one embodiment, the resistance value that outside IC allows for example is less than 15k Ω, and the resistance value of the sensing electrode layer 104 that is formed by tin indium oxide (ITO) is 8k Ω, and then the longitudinal impedance value of the light shield layer 106 of depressed part 112 belows need be less than 7k Ω.First thickness h 1 of light shield layer 106 can be according to the material behavior of light shield layer 106, required longitudinal impedance value and screening effect decision; In one embodiment; The material of light shield layer 106 is the black photoresistance for being made up of solvent, macromolecule and carbon black color for example; Light shield layer 106 required longitudinal impedance values are less than 7k Ω, and then first thickness h 1 of light shield layer 106 can be 0.6 μ m, and second thickness h 2 of light shield layer 106 can be 1.8 μ m.
Can influence the characteristic of its impedance according to the thickness of light shield layer 106; The embodiment of the utility model is in the position that needs electrically conduct, and like the position of depressed part 112, the thickness of attenuate light shield layer 106 is to h1; And in the position that need not electrically conduct; Like the zone beyond depressed part 112 belows, the thickness of thickening light shield layer 106 can be realized the purpose of signal transmission line 110 and 104 conducting of sensing electrode layer to h2; Owing to need not form the hole that runs through, therefore can avoid the problem of contactor control device 100 bad orders to take place simultaneously at light shield layer 106.
In addition; Shown in the 1st figure; Having insulation division 108 at the induction zone 100A of contactor control device 100 is provided with on the sensing electrode pattern of sensing electrode layer 104; And bonding line 109 is set on insulation division 108, makes with any two are adjacent but do not have interconnected sensing electrode pattern generating to electrically connect in delegation or the same row.
In addition, contactor control device 100 also comprises protective seam 114 and is covered in induction electrode layer 104, light shield layer 106, insulation division 108, bonding line 109 and signal transmission line 110 tops comprehensively.
Consult 2A to 2E and scheme, it is according to one of the utility model embodiment, illustrates the diagrammatic cross-section in each stage of the contactor control device 100 of shop drawings 1, wherein contactor control device 100 be with protection enclosing cover 102 below configuration mode appear.
At first, shown in Fig. 2 A, protection enclosing cover 102 being provided, for example is tempered glass, and the long-pending transparent conductive material layer in Shen, comprehensive ground on the inner surface of protection enclosing cover 102 for example is tin indium oxide (ITO) layer, and the long-pending mode in Shen for example is sputter (sputtering) processing procedure.Then, utilize patterning process such as little shadow and etching, form sensing electrode layer 104 the transparent conductive material layer patterning.In one embodiment; Sensing electrode layer 104 comprises a plurality of rhombus sensing electrode pattern 104X that are arranged in row; And a plurality of rhombus sensing electrode pattern 104Y that arrange in a row, these sensing electrode patterns 104Y system connects mutually, and sensing electrode pattern 104X is then separated from each other.In other embodiments, the sensing electrode pattern of sensing electrode layer 104 also can be other shapes or other arrangement modes.
Continue to consult Fig. 2 A, on the sensing electrode layer 104 of surrounding zone 100B, form the first light shield layer 106A earlier, in one embodiment, the thickness of the first light shield layer 106A is h1.Then, on the first light shield layer 106A, form the second light shield layer 106B, in one embodiment, the gross thickness of the first light shield layer 106A and the second light shield layer 106B is h2.The material of the first light shield layer 106A and the second light shield layer 106B for example is black photoresistance or black printing printing ink; The material of the first light shield layer 106A and the second light shield layer 106B can be identical or different; Can be by micro-photographing process with black photoresistance patterning; Perhaps by printing process with the black printing ink logoization, form the first light shield layer 106A and the second light shield layer 106B.
Consult Fig. 2 B, in the second light shield layer 106B, form depressed part 112, in one embodiment, depressed part 112 runs through the second light shield layer 106B and exposes the first light shield layer 106A; In another embodiment, depressed part 112 can not run through the second light shield layer 106B, as long as the gross thickness of the first light shield layer 106A of depressed part 112 belows and the second light shield layer 106B can reach light shield layer 106 required longitudinal impedance value and screening effect.
When the material of the second light shield layer 106B is the black photoresistance, can form depressed part 112 by micro-photographing process.When the material of the second light shield layer 106B is black printing printing ink, when can be in Fig. 2 A forming the pattern of the second light shield layer 106B, form depressed part 112 simultaneously with printing process.
Consult Fig. 2 C, above the sensing electrode pattern 104Y of sensing electrode layer 104, form insulation division 108, produce short circuit with bonding line 109 and the sensing electrode pattern 104Y that avoids any two adjacent sensing electrode pattern 104X in the same row of follow-up electric connection.The material of insulation division 108 can be the insulating material of organic or inorganic, for example is pi (polyimide), can form insulation division 108 by little shadow or printing process with this insulating material patterning.
Consult Fig. 2 D, on the second light shield layer 106B, form signal transmission line 110, and signal transmission line 110 is filled in the depressed part 112.In addition, on insulation division 108, form bonding line 109, bonding line 109 for example is a metal material with the material of signal transmission line 110, can be by little shadow and etch process, and perhaps printing process forms bonding line 109 and signal transmission line 110 with patterns of metallic materialization.In one embodiment, bonding line 109 can form by same process with signal transmission line 110 simultaneously.
Consult Fig. 2 E, form protective seam 114 comprehensively, the whole elements on the covering protection enclosing cover 102 comprise sensing electrode layer 104, insulation division 108, bonding line 109, light shield layer 106 and signal transmission line 110 etc., accomplish the making of the contactor control device 100 of Fig. 1.
In sum; According to the embodiment of the utility model, form depressed parts 112 on light shield layer 106 surface, make the reduced thickness of light shield layer 106 of depressed part 112 belows; And have the effect of vertical conducting, let signal transmission line 110 and sensing electrode pattern 104X can produce electric connection by this.The thickness of other the regional light shield layers 106 beyond in addition, below depressed part 112 then can reach effective insulation effect.Therefore; By the thickness of regulating light shield layer 106; Can change the impedance of light shield layer 106, make the zone of light shield layer 106 below depressed part 112 have the effect of vertical conducting, and other zones beyond below depressed part 112 then have laterally and the effect of vertical not conducting.
Because the light shield layer 106 of the utility model embodiment is to change impedance by regulating thickness; Reach vertical conducting whether control; Therefore need not form the hole that runs through, can make signal transmission line 110 produce and electrically conduct with sensing electrode layer 104 at light shield layer 106.Compared to the light shield layer structure of traditional contactor control device, the light shield layer 106 of the utility model embodiment can avoid contactor control device 100 that the problem of bad order takes place.
Though the utility model has disclosed preferred embodiment as above, so it is not that those having an ordinary knowledge in this technical field are when understanding, in spirit that does not break away from the utility model and scope, when doing a little change and retouching in order to qualification the utility model.Therefore, the protection domain of the utility model claim of after looking, attaching defines and is as the criterion.
Claims (10)
1. contactor control device comprises:
One sensing electrode layer is arranged at an induction zone and reaches the surrounding zone around this induction zone;
One light shield layer covers this sensing electrode layer in this surrounding zone and has a depressed part; And
One signal transmission line is arranged on this light shield layer, and fills this depressed part, and wherein this signal transmission line electrically conducts via this light shield layer and this sensing electrode layer of this depressed part below.
2. according to claim 1 contactor control device, this light shield layer that wherein is positioned at this depressed part below has one first thickness, be positioned at this depressed part below and have one second thickness with this light shield layer of exterior domain, and this first thickness is less than this second thickness.
3. the contactor control device of claim 2 is characterized in that, this light shield layer of this first thickness has electrical conduction, and this light shield layer of this second thickness has the property of being electrically insulated.
4. according to claim 1 contactor control device is characterized in that the material of this light shield layer comprises black photoresistance or black printing printing ink.
5. according to claim 1 contactor control device is characterized in that this light shield layer comprises:
One first light shield layer is arranged on this sensing electrode layer, has electrical conduction; And
One second light shield layer is arranged on this first light shield layer, has this depressed part.
6. the contactor control device of claim 5 is characterized in that, this depressed part runs through this second light shield layer, exposes this first light shield layer.
7. the contactor control device of claim 6; It is characterized in that; This first light shield layer that is positioned at this depressed part below has electrical conduction at a longitudinal direction, makes this signal transmission line and this sensing electrode layer electrically conduct, and wherein this longitudinal direction is perpendicular to the surface of this sensing electrode layer.
8. the contactor control device of claim 5 is characterized in that, the material of this first light shield layer is identical with the material of this second light shield layer.
9. the contactor control device of claim 5 is characterized in that, the material of this first light shield layer is different with the material of this second light shield layer.
10. according to claim 1 contactor control device is characterized in that, more comprises:
One protection enclosing cover, this sensing electrode layer is arranged at outside this protection and covers, and this sensing electrode layer is between this protection enclosing cover and this light shield layer; And
One protective seam is covered on this sensing electrode layer, this light shield layer and this signal transmission line comprehensively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204412981U CN202394199U (en) | 2011-10-26 | 2011-10-26 | Touch device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204412981U CN202394199U (en) | 2011-10-26 | 2011-10-26 | Touch device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202394199U true CN202394199U (en) | 2012-08-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204412981U Expired - Lifetime CN202394199U (en) | 2011-10-26 | 2011-10-26 | Touch device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202394199U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103076907A (en) * | 2011-10-26 | 2013-05-01 | 宸鸿科技(厦门)有限公司 | Touch device and production method thereof |
-
2011
- 2011-10-26 CN CN2011204412981U patent/CN202394199U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103076907A (en) * | 2011-10-26 | 2013-05-01 | 宸鸿科技(厦门)有限公司 | Touch device and production method thereof |
| WO2013060187A1 (en) * | 2011-10-26 | 2013-05-02 | Tpk Touch Solutions (Xiamen) Inc. | Touch device and fabrication method thereof |
| CN103076907B (en) * | 2011-10-26 | 2016-04-06 | 宸鸿科技(厦门)有限公司 | Contactor control device and manufacture method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20120822 Effective date of abandoning: 20160406 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |