CN202422064U - Touch control device - Google Patents
Touch control device Download PDFInfo
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- CN202422064U CN202422064U CN2011205794273U CN201120579427U CN202422064U CN 202422064 U CN202422064 U CN 202422064U CN 2011205794273 U CN2011205794273 U CN 2011205794273U CN 201120579427 U CN201120579427 U CN 201120579427U CN 202422064 U CN202422064 U CN 202422064U
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- light shield
- shield layer
- sensing electrode
- control device
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Abstract
The utility model provides a touch control device comprising a protective cover plate, a first shading layer, a second shading layer and a sensing electrode layer, wherein the protective cover plate comprises an induction zone and a peripheral zone surrounding the induction zone; the first shading layer is arranged inside the peripheral zone surrounding the induction zone; the second shading layer is arranged inside the peripheral zone in a way of surrounding the first shading layer and the area of the second shading layer is larger than that of the first shading layer; and the sensing electrode layer comprises a sensing part positioned inside the induction zone as well as an extension part extending into the peripheral zone from the induction zone, wherein the extension part is arranged on the first shading layer. The peripheral shading layers of the touch control device are formed by a big part and a small part, therefore the influence of impurities generated in the manufacturing of the shading layer on sensing electrodes can be reduced and then the sensing performance of the touch control device can be improved.
Description
Technical field
The utility model relates to touch technology, and particularly relevant for a kind of contactor control device.
Background technology
Contact panel has been widely used in the field of household supplies, communication device and electronic information aid.At present; Contact panel can form touch-control display panel with display panel; It can allow the user directly to choose images displayed on the panel with finger or contact pen; Replace the input interface of physical keyboard gradually because of it brings advantage to the user, and efficient operating system is provided as each electronic product.
Generally speaking, the sensing electrode layer of contact panel normally is arranged on the induction zone of contact panel, and the induction zone outer periphery is equipped with light shield layer, then is provided with various circuit on it, for example transmits the signal wire of the signal of sensing electrode layer.In the actual production processing procedure, light shield layer generally is formed on the substrate of contact panel prior to the sensing electrode layer, afterwards; Via sputter, etching, processing procedures such as high-temperature baking form the sensing electrode layer; But in the process of its high-temperature baking, light shield layer is volatile to go out like carbon dioxide (CO2) carbon monoxide (CO); And aqueous vapor impurity such as (H2O), it infiltrates to the metal oxide of making the sensing electrode layer, causes its electric conductivity to change; Influence the sensitivity of its induction, be unfavorable for the degree of accuracy and the precision of follow-up touch control detection.Therefore need reduce the impurity that light shield layer produces, to stablize the performance of sensing electrode layer as far as possible.
Summary of the invention
According to one of the utility model embodiment; A kind of contactor control device is provided; The light shield layer of its surrounding zone divides big or small two parts to form and the formation of its sensing electrode layer is in proper order between this two parts light shield layer forms; Thereby it can reduce impurity that the large tracts of land light shield layer produces to the influence of sensing electrode layer, and then solves contactor control device sensing electrode layer and cause the electric conductivity problem of unstable because of the influence that receives light shield layer impurity.
According to one of the utility model embodiment, a kind of contactor control device is provided, its it comprise: a cover sheet, this cover sheet have an induction zone and around one of this induction zone surrounding zone; One first light shield layer, it is arranged in this surrounding zone of this induction zone; One second light shield layer, around this first light shield layer and be arranged in this surrounding zone, wherein the area of this second light shield layer is greater than the area of this first light shield layer; And a sensing electrode layer, it has, and a sensing partly is arranged in this induction zone and an extension extends to this surrounding zone from this sensing area, and wherein this extension is arranged on this first light shield layer.
First light shield layer through forming the surrounding zone shading light part step by step and second light shield layer and large-area second light shield layer are formed at after the sensing electrode, can reduce the impurity that light shield layer produces, to stablize the performance of sensing electrode layer.
Description of drawings
Fig. 1 shows the top view according to the contactor control device that embodiment illustrated of the utility model.
Fig. 2 is the diagrammatic cross-section of the contactor control device that illustrated of the profile line X-X ' along Fig. 1.
Fig. 3 A to 3E show the embodiment according to the utility model make among the contactor control device between the diagrammatic cross-section in stage.
Embodiment
Below in conjunction with accompanying drawing and embodiment the utility model is described in further detail.
Referring to Fig. 1 and Fig. 2, Fig. 1 shows view on the contactor control device of embodiment of the utility model, and Fig. 2 is the diagrammatic cross-section of the contactor control device that illustrated of the profile line X-X ' along Fig. 1.Contactor control device 100, it comprises cover sheet 102, sensing electrode layer 104, the first light shield layer 116A and the second light shield layer 116B.This cover sheet 102 has induction zone 100A and centers on the surrounding zone 100B of this induction zone 100A.
When the induction zone 100A of the first surface 102A of operator's finger or pointer touching cover sheet 102, can the generation inductance capacitance between the sensing part 104A of operator's finger or pointer and sensing electrode layer 104.This inductance capacitance converts electrical signal transfer to external circuit into to calculate the position that contactor control device 100 is touched.
The first light shield layer 116A and the second light shield layer 116B are arranged among the surrounding zone 100B of contactor control device 100.The first light shield layer 116A centers on the sensing part 104A among the induction zone 100A, and between the extension 104B of cover sheet 102 and sensing electrode layer 104.The second light shield layer 116B is around the first light shield layer 116A, and it covers the surrounding zone 100B except that the first light shield layer 116A covers.The area of the second light shield layer 116B is greater than the area of the first light shield layer 116A.Therefore, the contactor control device of the disposable relatively formation one large-area shielding layer of the first light shield layer 116A, area can be less relatively, and the light shield layer in big zone can form after the first light shield layer 116A forms like the second light shield layer 116B.Owing to before making sensing electrode layer 104, have only the first light shield layer 116A of small size to be formed on the cover sheet 102, therefore can reduce the impurity that light shield layer produces, and then reduce influence sensing electrode layer 104.In a preferred embodiment; Control the size that this first light shield layer 116A accounts for cover sheet 102; Make it account for the roughly 0.1%-5% of total cover sheet 102 areas; Produce like CO2, CO and aqueous vapor impurity such as (H2O) when making sensing electrode layer 104 to reduce by the first light shield layer 116A, guarantee the sensing capability of sensing electrode layer 104.
The first sensing electrode 104AX and the second sensing electrode 104AY can extend to more that the first light shield layer 116A goes up and form the extension 104B of sensing electrode layer 104, and the area of this first light shield layer 116A can be more than or equal to the area of the extension 104B of sensing electrode layer 104.In a preferred embodiment, the first light shield layer 116A covers the surface of this extension 104B of this sensing electrode layer 104 just, so the extension 104B of sensing electrode layer 104 can have identical in fact pattern with the first light shield layer 116A.For example, extension 104B is a plurality of rectangles that separate, semicircle, triangle or other polygon arbitrarily, and then the first light shield layer 116A also can be and is a plurality of rectangles that separate, semicircle, triangle or other polygon arbitrarily.But be not limited to this; The pattern of the first light shield layer 116A can be inequality with the extension 104B of sensing electrode layer 104; For example; The first light shield layer 116A is shaped as frame shape on one side around induction zone 100A, and extension 104B covers a plurality of rectangles that separate on it, semicircle, triangle or other polygon arbitrarily.
More specifically, the edge of 104B self-induction district, the extension 100A of sensing electrode layer 104 extends on the first light shield layer 116A.This first light shield layer 104 has a slope 1163 and a tabular surface 1164 in abutting connection with this slope 1163, and this extension 104B of this sensing electrode layer 104 extends to along the slope 1163 of this first light shield layer 116A on the tabular surface 1164 of this first light shield layer 116A and forms.The degree of tilt of the first light shield layer 116A for example is roughly 20 degree to 40 degree, with the sensing part 104A that avoids sensing electrode layer 104 breaking at the interface at itself and first light shield layer.In one embodiment, the end of the extension 104B of sensing electrode layer 104 can directly contact with one of second light shield layer 116B sidewall.In addition, the gross thickness of the extension 104B of the first light shield layer 116A and sensing electrode layer 104 can be equal to the thickness of the second light shield layer 116B in fact.More specifically; This second light shield layer 116B has a upper surface 1161 and a lower surface 1162; And this extension 104B of this sensing electrode layer 104 has upper surface 1041 and an a lower surface 1042 relative with this first light shield layer; Wherein, surface 1162 flushes basically under the lower surface 1042 of this extension 104B of this sensing electrode layer 104 and this second light shield layer 116B.One of extension 104B of sensing electrode layer 104 surface surface of cover sheet (relatively away from) can flush with one of second light shield layer 116B surface the surface of cover sheet (relatively away from) basically.The first light shield layer 116A and the second light shield layer 116B can be formed by same material, for example, and coloured photoresistance, printing ink.And no matter all do not comprise opening between the first light shield layer 116A itself, the second light shield layer 116B itself and the first light shield layer 116A and the second light shield layer 116B, so that the shaded effect of the All Ranges among the 100B of surrounding zone all can be identical.Therefore, even if the viewing area of user when operation contactor control device 100 comprises the surrounding zone 100B of contactor control device 100, the neither aberration that has of the All Ranges among the 100B of surrounding zone produces.
In further embodiment; Contactor control device 100 more comprises; One signal transmission line 120 is formed on the second light shield layer 116B; And extend on the extension 104B of induction electrode layer 104 from the second light shield layer 116B, electrically connecting the extension 104B and the external circuit (not illustrating) of induction electrode layer 104, and the signal processor (not illustrating) that the capacitance variations that the sensing part 104A induction of induction electrode layer 104 obtains is sent to contactor control device 100 is to carry out the calculating of touching signals.Owing to surperficial 1162 flush basically under surface 1042 and second light shield layer under the extension 104B of sensing electrode layer 104; Therefore signal transmission line 120 is smooth; And then the resistance that guarantees signal transmission line 120 is in steady state (SS), avoids causing because of the bending of circuit the phenomenon of resistance fluctuation.
In one embodiment; Protective seam 124 can cover all component (for example the sensing part 104A of sensing electrode layer 104, extension 104B, the first light shield layer 116A, the second light shield layer 116B) of 102B on the second surface that is arranged at cover sheet 102 comprehensively, to protect these assemblies and to provide a flat surfaces to supply display panel 140 to attach.
Then, see also Fig. 3 A to 3E, it is the diagrammatic cross-section in stage between embodiment according to the utility model makes among the contactor control device.At first, shown in Fig. 3 A, cover sheet 102 is provided.This cover sheet 102 has first surface 102A and reaches and its opposing second surface 102B, and this first surface 102A is as touch surface.On the second surface 102B of cover sheet 102, form the first light shield layer 116A.The first light shield layer 116A is arranged among the 100B of surrounding zone.The first light shield layer 116A for example is coloured photoresistance, printing ink or other light-proof materials, and its generation type has multiple, for example, is formed by deposition manufacture process, and makes patterning by micro-photographing process, or form through screen printing.Other characteristics as for the first light shield layer 116A are same as the previously described embodiments, just do not giving unnecessary details at this.
Then, shown in Fig. 3 B, form sensing electrode layer 104 and be covered on the second surface 102B and the first light shield layer 116A of cover sheet 102.Sensing electrode layer 104 comprises sensing part 104A and extension 104B.The sensing part 104A that is arranged in induction zone 100A of sensing electrode layer 104 can be patterned as the first sensing electrode 104AX that arranges in a row and be listed as and the second sensing electrode 104AY as shown in Figure 1 with it by photoetching or printing process.Extension 104B extends to this surrounding zone 100B from this sensing area 100A, and this extension 104B is arranged on this first light shield layer 116A.More specifically, as shown in Figure 1, the two adjacent first sensing electrode 104AX connect mutually through a connecting line 114, and those second sensing electrodes 104AY is separated from each other, and in addition, other characteristics of sensing electrode layer 104 are identical with above-mentioned enforcement, do not giving unnecessary details at this.
Then, shown in Fig. 3 C, treat that sensing component among the induction zone 100A has formed all after, the remainder in the 100B of surrounding zone forms the second light shield layer 116B, and the area of this second light shield layer 116B is greater than the area of the first light shield layer 116A.In one embodiment, the second light shield layer 116B can be formed by identical processing procedure and material with the first light shield layer 116A, and thickness is thick than the first light shield layer 116A.The second light shield layer 116B can be by a planarization processing procedure, and for example cmp removes blocked up part, flushes basically until one of the extension of surface thereof and sensing electrode layer surface.
Then; Referring to Fig. 3 D; Form signal transmission line 120 and go up electrically connecting the extension 104B and the external circuit (not illustrating) of induction electrode layer 104, and the signal processor (not illustrating) that the capacitance variations that the sensing part 104A induction of induction electrode layer 104 obtains is sent to contactor control device 100 is to carry out the calculating of touching signals in the extension 104B of the second light shield layer 116B and sensing electrode layer 104.This signal transmission line 120 can be a metal material, can make patterning by lithography or printing process, so that it has corresponding to first sensing electrode 104AX as shown in Figure 1 and the pattern of the second sensing electrode 104AY.
In addition; Insulation course 112 as depicted in figs. 1 and 2 is formed on the connecting line 114 with the corresponding first sensing electrode 104AX of electrical isolation and the second sensing electrode 104AY, and insulation course 112 can formation after sensing electrode layer 104, the second light shield layer 116B or signal transmission line 120 form.In order to simplify accompanying drawing, insulation course 112 is not shown in Fig. 3 B to 3E.
After insulation course 112 formed, bonding line 113 as depicted in figs. 1 and 2 was formed on the insulation course 112 to be electrically connected the two adjacent second sensing electrode 104AY.In one embodiment, bonding line 113 forms in same processing procedure with signal transmission line 120.In order to simplify accompanying drawing, bonding line 113 is not shown in Fig. 3 D.
So form arranging of each assembly shown in Figure 1 by the step shown in Fig. 3 A-3D; But the pattern form of sensing electrode layer 104 is not limited to this, and according to the difformity of sensing electrode layer 104, insulation course 112, bonding line 113 also can be nonessential assemblies; For example the sensing electrode layer can be the individual layer single shaft or the pattern of double-deck twin shaft; Allly in the spirit and scope of the utility model, do any change and retouching, all belong to the protection domain of the utility model.
At last, referring to Fig. 3 E, form all component that a protective seam 124 covers on the second surface 102B, and the surface of a substantially flat is provided, comprise sensing part 104A, extension 104B, the first light shield layer 116A and the second light shield layer 116B of sensing electrode layer.Accomplish the making of contact panel.Subsequently, attach display panel 140 on protective seam 124, form the contactor control device 100 that the utility model embodiment is provided.
The above is merely the preferred embodiment of the utility model; Not in order to restriction the utility model; All within the spirit and principle of the utility model, any modification of being made, be equal to replacement, improvement etc., all should be included within the scope of the utility model protection.
Claims (9)
1. a contactor control device is characterized in that, comprising:
One cover sheet, it has an induction zone and a surrounding zone around this induction zone;
One first light shield layer, it is arranged in this surrounding zone of this induction zone;
One second light shield layer is arranged in this surrounding zone around this first light shield layer, and wherein the area of this second light shield layer is greater than the area of this first light shield layer; And
One sensing electrode layer, it has, and a sensing partly is arranged in this induction zone and an extension extends to this surrounding zone from this sensing area, and wherein this extension is arranged on this first light shield layer.
2. contactor control device according to claim 1; It is characterized in that; This contactor control device more comprises a signal transmission line, is formed on this second light shield layer and is formed on this extension of this sensing electrode layer, and be electrically connected with this extension of this sensing electrode layer.
3. contactor control device according to claim 1 is characterized in that this first light shield layer accounts for the 0.1%-5% of this cover sheet total area.
4. contactor control device according to claim 1 is characterized in that this first light shield layer covers the surface of this extension of this sensing electrode layer just.
5. contactor control device according to claim 1; It is characterized in that; This second light shield layer has a upper surface and a lower surface; And this extension of this sensing electrode layer has upper surface and an a lower surface relative with this first light shield layer, and wherein, the surface flushes basically under the lower surface of this extension of this sensing electrode layer and this second light shield layer.
6. contactor control device according to claim 1; It is characterized in that; This first light shield layer has a slope and a tabular surface in abutting connection with this slope, and this extension of this sensing electrode layer is to extend to along the slope of this first light shield layer on the tabular surface of this first light shield layer and form.
7. contactor control device according to claim 1; It is characterized in that; This detecting part branch of this sensing electrode layer comprises a plurality of first sensing electrodes that arrange in a row and a plurality of second sensing electrode that is arranged in row; And the two first adjacent sensing electrodes connect mutually through a connecting line, and those second sensing electrodes are separated from each other.
8. contactor control device according to claim 7 is characterized in that, more comprises:
One bonding line electrically connects corresponding two adjacent those second sensing electrodes; And
One insulation course is arranged between this connecting line and this bonding line, with electrical isolation first sensing electrode and second sensing electrode.
9. contactor control device according to claim 1 is characterized in that, this first and this second light shield layer include coloured light resistance or printing ink.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205794273U CN202422064U (en) | 2011-12-29 | 2011-12-29 | Touch control device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205794273U CN202422064U (en) | 2011-12-29 | 2011-12-29 | Touch control device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202422064U true CN202422064U (en) | 2012-09-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011205794273U Expired - Lifetime CN202422064U (en) | 2011-12-29 | 2011-12-29 | Touch control device |
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| Country | Link |
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| CN (1) | CN202422064U (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103257767A (en) * | 2013-01-30 | 2013-08-21 | 福建科创光电有限公司 | Integrated capacitive sensing touch screen adopting two frame silk-screen and production method of integrated capacitive sensing touch screen |
| WO2013127318A1 (en) * | 2012-03-01 | 2013-09-06 | 祥达光学（厦门）有限公司 | Touch control device and manufacturing method |
| CN103677359A (en) * | 2012-09-06 | 2014-03-26 | 宸鸿科技(厦门)有限公司 | Touch panel and touch screen structure and touch display equipment thereof |
| CN103677422A (en) * | 2013-10-31 | 2014-03-26 | 友达光电股份有限公司 | Touch panel |
| CN103995609A (en) * | 2013-02-17 | 2014-08-20 | 宸鸿科技(厦门)有限公司 | Touch device and forming method thereof |
| CN104182067A (en) * | 2013-05-21 | 2014-12-03 | 宸鸿科技(厦门)有限公司 | Touch panel and manufacturing method thereof |
| CN104317437A (en) * | 2014-09-18 | 2015-01-28 | 福建省飞阳光电有限公司 | Protecting cover plate and touch panel |
| US9760227B2 (en) | 2013-01-30 | 2017-09-12 | Fujian Kechuang Photoelectric Co., Ltd. | OGS captive touch panel and method for manufacturing same |
-
2011
- 2011-12-29 CN CN2011205794273U patent/CN202422064U/en not_active Expired - Lifetime
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013127318A1 (en) * | 2012-03-01 | 2013-09-06 | 祥达光学（厦门）有限公司 | Touch control device and manufacturing method |
| CN103677359A (en) * | 2012-09-06 | 2014-03-26 | 宸鸿科技(厦门)有限公司 | Touch panel and touch screen structure and touch display equipment thereof |
| CN103257767A (en) * | 2013-01-30 | 2013-08-21 | 福建科创光电有限公司 | Integrated capacitive sensing touch screen adopting two frame silk-screen and production method of integrated capacitive sensing touch screen |
| US9760227B2 (en) | 2013-01-30 | 2017-09-12 | Fujian Kechuang Photoelectric Co., Ltd. | OGS captive touch panel and method for manufacturing same |
| CN103995609A (en) * | 2013-02-17 | 2014-08-20 | 宸鸿科技(厦门)有限公司 | Touch device and forming method thereof |
| WO2014124601A1 (en) * | 2013-02-17 | 2014-08-21 | 宸鸿科技(厦门)有限公司 | Touch control device and forming method thereof |
| CN104182067A (en) * | 2013-05-21 | 2014-12-03 | 宸鸿科技(厦门)有限公司 | Touch panel and manufacturing method thereof |
| CN104182067B (en) * | 2013-05-21 | 2017-12-01 | 宸鸿科技(厦门)有限公司 | A kind of contact panel and its manufacture method |
| CN103677422A (en) * | 2013-10-31 | 2014-03-26 | 友达光电股份有限公司 | Touch panel |
| CN103677422B (en) * | 2013-10-31 | 2017-02-08 | 友达光电股份有限公司 | Touch panel |
| CN104317437A (en) * | 2014-09-18 | 2015-01-28 | 福建省飞阳光电有限公司 | Protecting cover plate and touch panel |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120905 |