CN102520831B - Barrier structure and use the capacitance type touch-control panel of this barrier structure - Google Patents
Barrier structure and use the capacitance type touch-control panel of this barrier structure Download PDFInfo
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Abstract
The present invention relates to technical field of touch-control display, particularly relate to a kind of barrier structure.The first step that this barrier structure at least comprises the first barrier bed, the second barrier bed and overlapped by the first barrier bed and the second barrier bed, has at least one to be made up of material that is light tight and that insulate in this first barrier bed and the second barrier bed.In addition, a kind of capacitance type touch-control panel using above-mentioned barrier structure is also provided.
Description
Technical field
The present invention relates to technical field of touch-control display, particularly relate to a kind of barrier structure for capacitance type touch-control panel and use the capacitance type touch-control panel of this barrier structure.
Background technology
Contact panel, according to the difference of its touch-control principle, is divided into electric resistance touch-control panel, capacitance type touch-control panel, infrared type contact panel and sound wave type contact panel.
The defect that resistance-type, infrared type, sound wave type contact panel cause due to its principle of work, is not suitable for use in the operation interface of hand-held mobile terminal.Capacitance type touch-control panel because its touch-control sensitivity is good, long service life, not easily by advantages such as outer signals interference, be widely used in hand-held mobile terminal.
Capacitance type touch-control panel is further divided into again surface-capacitive touch panel and projected capacitive touch panel.Surface-capacitive touch panel is owing to only can realize single-point touch, and therefore, its range of application is not extensive yet.And projected capacitive touch panel is widely used because it can realize multi-point touch.
Projected capacitive touch panel comprises substrate, and this substrate is divided into functional areas and perimeter circuit district.The substrate at this place, functional areas is provided with X-axis sensing electrode layer, Y-axis sensing electrode layer.X-axis sensing electrode layer and Y-axis sensing electrode layer are formed at two opposing surfaces of substrate respectively.X-axis sensing electrode layer comprises many and is parallel to each other and X-axis induction electrode tandem spaced apart, Y-axis sensing electrode layer comprises many and is parallel to each other and Y-axis induction electrode tandem spaced apart, and X-axis induction electrode tandem and the projection of Y-axis induction electrode tandem in the plane being parallel to substrate perpendicular.The substrate at this place, perimeter circuit district is provided with the lead-in wire that many connect described X-axis sensing electrode tandem and Y-axis sensing electrode tandem.
The capacitance type touch control screen that industry uses generally includes above-mentioned capacitance type touch-control panel and cover plate.On this cover plate, the position in corresponding described perimeter circuit district is provided with barrier bed.This barrier bed is usually coated on described lid surface by black resin and forms, and prevents the outward appearance of the lead effect capacitance type touch control screen of described capacitance type touch-control panel.The cover plate being provided with barrier bed is fitted with the capacitance type touch-control panel being provided with X-axis sensing electrode layer and Y-axis sensing electrode layer, forms described capacitance type touch control screen.But, because described barrier bed only arranges the position on the cover board corresponding described capacitance type touch-control panel perimeter circuit district, therefore, there is between this this barrier bed and described lid surface one section of difference, when described cover plate and capacitance type touch-control panel are fitted, easily produce bubble at this section difference place, affect the outward appearance of described capacitance type touch control screen.In addition, because described barrier bed is formed by black resin coating, easily because technique or operation reason cause the regional area on the lid surface position corresponding with described perimeter circuit district not covered by black resin, cause light leak, or the lead effect outward appearance of described capacitance type touch-control panel.
Summary of the invention
In view of this, be necessary to provide a kind of and prevent light leak, prevent bubble and be conducive to promoting the barrier structure of appearance.
In addition, there is a need to provide a kind of capacitance type touch-control panel using above-mentioned barrier structure.
The first step that barrier structure for capacitance type touch-control panel at least comprises the first barrier bed, the second barrier bed and overlapped by the first barrier bed and the second barrier bed, has at least one to be made up of material that is light tight and that insulate in this first barrier bed and the second barrier bed.
In described barrier structure provided by the invention, described barrier structure also comprises the 3rd barrier bed, and the 3rd barrier bed is arranged on the second barrier bed, and overlaps a second step with described second barrier bed.
In described barrier structure provided by the invention, described first barrier bed and the second barrier bed are made by material that is light tight and that insulate.
A kind of capacitance type touch-control panel comprises substrate, this substrate has first surface, this first surface is divided into first area and second area, this first area is adjacent with second area, and this second area is around this first area, this first area is provided with electrode layer, is provided with barrier structure and a plurality of leads on the first region, described barrier structure is arranged on the first surface of described substrate, and described a plurality of leads is arranged on described barrier structure; The first step that described barrier structure at least comprises the first barrier bed, the second barrier bed and overlapped by the first barrier bed and the second barrier bed.
In described capacitance type touch-control panel provided by the invention, described first barrier bed is arranged on the second area of described substrate, described second barrier bed is arranged on described first barrier bed, and the projection of this second barrier bed on the first surface of described substrate cover by the projection of described first barrier bed on the first surface of this substrate, first, second barrier bed described is overlapped, and forms described first step in the side near described first area.
In described capacitance type touch-control panel provided by the invention, described second barrier bed is being less than the first barrier bed span in the direction in which along described first area to the span on the direction of second area.
In described capacitance type touch-control panel provided by the invention, have at least one to be made up of material that is light tight and that insulate in described first barrier bed and the second barrier bed, and described first barrier bed and the second barrier bed are identical perpendicular to the thickness on the direction of this substrate.
In described capacitance type touch-control panel provided by the invention, described electrode layer comprises many first tandems, many the second tandems and multiple collets, described a plurality of leads is connected with many first tandems and the second tandem respectively, be parallel to each other between described many first tandems, be parallel to each other between described many second tandems, and these many first tandems and many second tandems intersect to form multiple point of crossing mutually, at this point of crossing place, be provided with for the collets opened that the first tandem and the second tandem are insulated, described first barrier bed, second barrier bed and described collets are made in the lump in same processing procedure.
In described capacitance type touch-control panel provided by the invention, described barrier structure and collets are exposed by gray level mask, develop and make, or described barrier structure and collets are made in the lump by serigraphy; Described gray level mask comprises transmission region, semi-transparent region, light tight region, the position at the second barrier bed place in the position at collets place and corresponding second area in corresponding described first area, this light tight region, the position, both sides of the edge of the corresponding second area in this semi-transparent region, all the other are transmission region.
A kind of capacitance type touch-control panel comprises substrate, cover plate and the tack coat in conjunction with this substrate and cover plate, described substrate has second surface, this second surface is divided into the 3rd region and the 4th region, and the 3rd region is adjacent with the 4th region, and the 4th region is around the 3rd region; 3rd region is provided with electrode layer, and the 4th region is provided with a plurality of leads, and the 4th correspondence position surface, region of described cover plate and described substrate is provided with barrier structure, and this barrier structure comprises the 3rd barrier bed, the 4th barrier bed and the 3rd step.
Barrier structure for capacitance type touch-control panel provided by the invention and using in the capacitance type touch-control panel of this barrier structure, by adopting the first barrier bed and this double-layer structure of the second barrier bed, and the first barrier bed and the second barrier bed all adopt material that is light tight and insulation to make, and effectively can avoid light leakage phenomena.In addition, by the first step overlapped by the first barrier bed and the second barrier bed, effectively can prevent capacitance type touch-control panel in laminating process, produce bubble in this barrier structure edge, be conducive to the outward appearance promoting capacitance type touch-control panel.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the invention will be further described, in accompanying drawing:
Fig. 1 is the schematic diagram of the capacitance type touch-control panel of a better embodiment provided by the invention.
The schematic cross-section along A-A direction that Fig. 2 is the capacitance type touch-control panel shown in Fig. 1
Fig. 3 is the schematic diagram of the barrier structure shown in Fig. 2.
The method for making schematic flow sheet of the better embodiment that Fig. 4 is the barrier structure shown in Fig. 2.
Fig. 5 is another better embodiment capacitance type touch-control panel schematic partial cross-sectional view provided by the invention.
Embodiment
For barrier structure provided by the invention being described and using the capacitance type touch-control panel of this barrier structure, be described in detail below in conjunction with Figure of description.
Please refer to Fig. 1 and Fig. 2, it is the schematic diagram of the capacitance type touch-control panel of a better embodiment provided by the invention and the schematic cross-section along A-A direction thereof.This capacitance type touch-control panel 100 comprises substrate 110, this substrate 110 has first surface (not shown), this first surface is divided into first area 111 and second area 113, and this second area 113 is adjacent with this first area 111, and around this first area 111.This first area 111 is formed with electrode layer 120, this electrode layer 120 comprise many have multiple first module 121 be connected with multiple first 123 the first tandem, many there is multiple many second units 131 are connected 133 the second tandem, multiple collets 150 and protective seam (not shown) with multiple second.This second area 113 is formed with barrier structure 170 and a plurality of leads (not shown).Described barrier structure 170 is formed on the first surface of described substrate 110, and described a plurality of leads is arranged on described barrier structure 170.Described a plurality of leads is connected with described many first tandems and many second tandems respectively, and not overlapping between a plurality of leads.
In described electrode layer 120, the multiple first modules 121 being positioned at same row are connected by multiple first connections 123 being positioned at these row, form first tandem, adjacent two first modules 121 connect 123 by one first and connect, and are parallel to each other between described many first tandems; The multiple second units 131 being positioned at same a line are connected by multiple second connections 133 being positioned at this row, and form the second tandem described in, adjacent two second units 131 connect 133 connections by one second, are parallel to each other between described many second tandems.In the present embodiment, described first module 121 is all identical with size with the shape of second unit 131, spacing between any two adjacent first modules 121 and second unit 131 is identical, and spacing between any two first tandems is consistent, spacing between any two second tandems is consistent, therefore, it not only can guarantee that the induced signal intensity produced between each ranks of described capacitance type touch-control panel is consistent, and capacitance type touch-control panel can be effectively reduced because size and shape between first module 121 and second unit 131 is inconsistent and the inconsistent aberration caused of space between each other, obtain good appearance.In other embodiments, the size and shape of described first module 121 and second unit 131 can be different, but have identical size and shape between all first modules 121, have identical size and shape between all second units 131; Spacing between any two adjacent first modules 121 and second unit 131 also can not be identical.Multiple described first module 121 in multiple described first tandem is connected 123 with multiple first, multiple second units 131 in multiple second tandem are made in same processing procedure by transparent conductive material, in multiple described second tandem multiple second connects 133 and is also made up of transparent conductive material or conductive metal material, therefore, described capacitance type touch-control panel can be made to have better appearance, and the versatility of the equipment making described first tandem and the second tandem can be increased, at described first tandem of making and second unit, in second technique connected, same film deposition equipment can be used, save production cost.
Mutually intersect between many described first tandems and many described second tandems, form multiple point of crossing 140, and at described point of crossing 140 place, many described second tandem is cut off into multiple second unit 131 by many described first tandem segmentations, and two second units 131 adjacent in the second tandem described in same connect 133 by second and connect.Described multiple collets 150 and multiple described point of crossing 140 one_to_one corresponding, and lay respectively at described multiple point of crossing 140 place, described collets 150 are arranged at described second connection 133 times, described first and connect on 123.
In the present embodiment, described barrier structure 170 refers to Fig. 3, the first step 173 that this barrier structure 170 at least comprises the first barrier bed 171, second barrier bed 172 and overlapped by the first barrier bed 171 and the second barrier bed 172.Have at least one to be made by the light tight and material with insulating property in described first barrier bed 171 and the second barrier bed 172, such as the first barrier bed 171 is made by black resin, or the second barrier bed 172 is made by black resin.On the first surface that this first barrier bed 171 is arranged at described substrate 110 in described second area 113, it partially or completely occupies this second area 113.Described second barrier bed 172 is arranged on described first barrier bed 171, and the projection of described second barrier bed 172 on the first surface of described substrate 110 cover by the projection of described first barrier bed 171 on the first surface of described substrate 110, described first, second barrier bed 171, 172 overlapped, and at least form described first step 173 in the side near described first area, relatively be preferably, the first barrier bed 171 span is in the direction in which less than in the span of described second barrier bed 172 on the direction along first area 111 to second area 113, and on the direction along first area 111 to second area 113, the central point of described first barrier bed 171 and the point coincides of described second barrier bed 172, thus be all formed with first step 173 at described barrier structure 170 near the side of described first area 111 with away from the side of described first area 111.This first step 173 makes the difference of the section between the edge of this barrier structure 170 and the first surface of this substrate 110 effectively reduce, and then can effectively prevent from producing bubble in the edge of this barrier structure 170 in laminating process.More preferably, the thickness of this first barrier bed 171 is identical with the thickness of the second barrier bed 172, and namely on the direction perpendicular to described substrate, the thickness of the first barrier bed 171 equals the thickness of the second barrier bed 172.In other embodiments, this barrier structure 170 can also comprise the 3rd barrier bed (not shown), 3rd barrier bed is arranged on this second barrier bed 172, its this second barrier bed 172 is not covered by described 3rd barrier bed 173 near the side of described second area 113, forms second step (not shown).
In the present embodiment, first barrier bed 171 of described barrier structure 170 adopts the light tight and material coating with insulating property to form, this second barrier bed 172 also adopt light tight and have insulating property material coating form, relatively be preferably, this barrier structure 170 is made in the lump in the process making described multiple collets 150, and described first barrier bed 171 and the second barrier bed 172 are all being less than described collets thickness in the direction in which perpendicular to the thickness on the direction of substrate first surface, and the first barrier bed 171 and the second barrier bed 172 are equaling described collets thickness in the direction in which perpendicular to the thickness sum on substrate first surface direction.The one of this barrier structure 170 preferably method for making refers to Fig. 4, and it comprises the steps:
Step S201: adopt light tight on the first area 111 and second area 113 of this substrate 110 and the material with insulating property is coated with a ground floor film, and solidify this ground floor film.
Step S203: adopt light tight on this ground floor film and the material with insulating property is coated with a second layer film, this second layer film covers this ground floor film completely, and solidifies this second layer film.
Step S205: be coated with a photoresist layer on this second layer film, this photoresist layer covers this second layer film completely.
Step S207: adopt a gray level mask to this be coated with ground floor film, second layer film, photoresist layer substrate 110 expose.In the corresponding described first area 111 of this gray level mask, in the position at collets 150 place and corresponding described second area 113, the position at the second barrier bed 172 place is light tight region, in its corresponding second area 113, the position at first step 173 place is semi-transparent region, its be full transmission region; That is: on described gray level mask, the position, both sides of the edge of corresponding second area 113 is semi-transparent region, and other positions are light tight region on corresponding second area 113, and this gray level mask is to should be light tight region near the first tandem in first area 111 and point of crossing 140 place between the second tandem, and to should first area 111 be transmission region at other positions.
Step S209: development obtains described barrier structure 170 and described multiple collets.
In above-mentioned method for making process, be successively coated with ground floor film and second layer film, it effectively can solve the light leak defect that coating thin film causes.
In other embodiments, also can only be coated with ground floor film, and adopt that described gray level mask exposes this ground floor film, development treatment, obtain described barrier bed structure 170.Even can also by accurately controlling the span of ground floor film and second layer film, the span of second layer film is made to be less than the span of ground floor film, and make ground floor film near a part for side, described first area 113 not by second layer plastic film covering, namely ground floor film comes out near a part for side, described first area 113.By accurately controlling the method (as serigraphy) of the span of ground floor film and second layer film, and then do not need to carry out exposure-processed to this ground floor film and second layer film, Simplified flowsheet, or do not need to use gray level mask to carry out GTG exposure to this ground floor film and second layer film, save cost of manufacture.
As shown in Figure 5, it is the schematic partial cross-sectional view of the capacitance type touch-control panel of another better embodiment provided by the invention.The tack coat 380 that described capacitance type touch-control panel 300 comprises substrate 310, cover plate 330 and this substrate 310 and cover plate 330 combined.This substrate 310 has second surface (not shown), and this second surface is divided into the 3rd region 311 adjacent with the 4th region 313 with the 4th region, region the 313, three 311, and the 4th region 313 is around the 3rd region 311.3rd region 311 is provided with electrode layer (not shown), the 4th region 313 is provided with a plurality of leads 320.This cover plate 330 is provided with barrier structure 370 with the 4th correspondence position surface, region of described substrate 310.This barrier structure 370 comprises the 3rd barrier bed and the 4th barrier bed, and the 3rd barrier bed and the 4th barrier bed overlap one the 3rd step, and this barrier structure 370 is similar with the barrier structure 170 shown in Fig. 2, Fig. 3, at this, is not repeated.
It is more than the better embodiment of barrier structure provided by the invention and the capacitance type touch-control panel using this barrier structure; the restriction to rights protection scope of the present invention can not be interpreted as; those skilled in the art should know; without departing from the inventive concept of the premise; also can do multiple improvement or replacement; these all improvement or replacement all should in the scope of the present invention, and namely the scope of the present invention should be as the criterion with claim.
Claims (9)
1. the barrier structure for capacitance type touch-control panel, the first step at least comprising the first barrier bed, the second barrier bed and overlapped by the first barrier bed and the second barrier bed, described second barrier bed is formed on described first barrier bed, make by material that is light tight and that insulate in this first barrier bed and the second barrier bed, the central point of described first barrier bed and the point coincides of described second barrier bed.
2. barrier structure as claimed in claim 1, it is characterized in that: described barrier structure also comprises the 3rd barrier bed, the 3rd barrier bed is arranged on the second barrier bed, and overlaps a second step with described second barrier bed.
3. a capacitance type touch-control panel, comprise substrate, this substrate has first surface, this first surface is divided into first area and second area, and this first area is adjacent with second area, and this second area is around this first area, this first area is provided with electrode layer, be provided with barrier structure and a plurality of leads on the first region, described barrier structure is arranged on the first surface of described substrate, and described a plurality of leads is arranged on described barrier structure; The first step that described barrier structure at least comprises the first barrier bed, the second barrier bed and overlapped by the first barrier bed and the second barrier bed, the central point of described first barrier bed and the point coincides of described second barrier bed.
4. capacitance type touch-control panel as claimed in claim 3, it is characterized in that: described first barrier bed is arranged on the second area of described substrate, described second barrier bed is arranged on described first barrier bed, and the projection of this second barrier bed on the first surface of described substrate cover by the projection of described first barrier bed on the first surface of this substrate, first, second barrier bed described is overlapped, and at least forms described first step in the side near described first area.
5. capacitance type touch-control panel as claimed in claim 4, is characterized in that: described second barrier bed is being less than the first barrier bed span in the direction in which along first area to the span on the direction of second area.
6. capacitance type touch-control panel as claimed in claim 5, it is characterized in that: have at least one to be made up of material that is light tight and that insulate in described first barrier bed and the second barrier bed, and described first barrier bed and the second barrier bed are identical perpendicular to the thickness on the direction of this substrate.
7. capacitance type touch-control panel as claimed in claim 4, it is characterized in that: described electrode layer comprises many first tandems, many the second tandems and multiple collets, described a plurality of leads is connected with many first tandems and the second tandem respectively, be parallel to each other between described many first tandems, be parallel to each other between described many second tandems, and these many first tandems and many second tandems intersect to form multiple point of crossing mutually, at this point of crossing place, be provided with for the collets opened that the first tandem and the second tandem are insulated, described first barrier bed, second barrier bed and described collets are made in the lump in same processing procedure.
8. capacitance type touch-control panel as claimed in claim 7, is characterized in that: described barrier structure and collets are exposed by gray level mask, develop and make, or described barrier structure and collets are made in the lump by serigraphy; Described gray level mask comprises transmission region, semi-transparent region, light tight region, the position at the second barrier bed place in the position at collets place and corresponding second area in corresponding described first area, this light tight region, the position, both sides of the edge of the corresponding second area in this semi-transparent region, all the other are transmission region; Described first barrier bed and the second barrier bed thickness on the direction of the first surface perpendicular to described substrate is all less than the thickness of described collets, and described first barrier bed and the second barrier bed thickness sum on the direction of the first surface perpendicular to substrate equals described collets thickness in the direction in which.
9. a capacitance type touch-control panel, comprise substrate, cover plate and the tack coat in conjunction with this substrate and cover plate, described substrate has second surface, and this second surface is divided into the 3rd region and the 4th region, 3rd region is adjacent with the 4th region, and the 4th region is around the 3rd region; 3rd region is provided with electrode layer, 4th region is provided with a plurality of leads, 4th correspondence position surface, region of described cover plate and described substrate is provided with barrier structure, this barrier structure comprises the 3rd barrier bed, the 4th barrier bed and the 3rd step, the central point of described 3rd barrier bed and the point coincides of described 4th barrier bed.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201110364116.XA CN102520831B (en) | 2011-11-16 | 2011-11-16 | Barrier structure and use the capacitance type touch-control panel of this barrier structure |
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| CN201110364116.XA CN102520831B (en) | 2011-11-16 | 2011-11-16 | Barrier structure and use the capacitance type touch-control panel of this barrier structure |
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| CN102520831A CN102520831A (en) | 2012-06-27 |
| CN102520831B true CN102520831B (en) | 2016-01-20 |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103576949B (en) * | 2012-07-24 | 2017-02-15 | 宸鸿科技(厦门)有限公司 | Touch panel and manufacturing method thereof |
| CN103336613A (en) * | 2013-06-19 | 2013-10-02 | 深圳莱宝高科技股份有限公司 | Panel structure and manufacturing method thereof |
| CN105058957B (en) | 2015-07-27 | 2018-12-28 | 京东方科技集团股份有限公司 | Halftone and preparation method thereof, packaging method, display panel, display device |
| CN106775041A (en) * | 2015-11-20 | 2017-05-31 | 深圳莱宝高科技股份有限公司 | A kind of information input panel and preparation method thereof |
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Address after: 321016, No. 333 Chung Xue street, Zhejiang, Jinhua Applicant after: Zhejiang Jinley Coating Co., Ltd. Address before: 321017 No. 658, Yongkang street, Wucheng District, Zhejiang, Jinhua Applicant before: Zhejiang Jinley Coating Co., Ltd. |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 321016 No. 333, Chung Xue street, Jinhua, Zhejiang. Patentee after: Zhejiang Lai Bao Technology Co., Ltd. Address before: 321016 No. 333, Chung Xue street, Jinhua, Zhejiang. Patentee before: Zhejiang Jinley Coating Co., Ltd. |
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| CP01 | Change in the name or title of a patent holder |