CN105353930A - OGS capacitive touch screen, preparation method thereof and touch display device - Google Patents
OGS capacitive touch screen, preparation method thereof and touch display device Download PDFInfo
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- CN105353930A CN105353930A CN201510796768.9A CN201510796768A CN105353930A CN 105353930 A CN105353930 A CN 105353930A CN 201510796768 A CN201510796768 A CN 201510796768A CN 105353930 A CN105353930 A CN 105353930A
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Abstract
The invention belongs to the technical field of electronic glass, and discloses an OGS capacitive touch screen, a preparation method thereof and a touch display device. The OGS capacitive touch screen comprises a transparent glass substrate layer, a printing ink pattern layer covered on an air surface of the glass substrate layer, a first vanishing AZO pattern layer plated on the printing ink pattern layer, an insulating layer plated on the first vanishing AZO pattern layer, a second vanishing AZO pattern layer plated on the insulating layer, a metal layer plated on the second vanishing AZO pattern layer and a protection layer plated on the metal layer. According to the OGS capacitive touch screen disclosed by the invention, the traditional ITO substrate is replaced by AZO for preparing the capacitive touch screen, so that the cost is low and the raw materials are abundant; and the vanishing layers are plated on the AZO film to solve the problem of obvious etching textures, the printing ink layer is plated on the air surface of the glass substrate layer to improve the transmittance of the AZO glass, and the performance of the AZO-based capacitive touch screen is improved while satisfying the display effect of the touch screen.
Description
Technical field
The invention belongs to electronic glass technical field, particularly relate to a kind of OGS capacitive touch screen and preparation method thereof and touch control display apparatus.
Background technology
At present, touch screen technology has been applied to the every aspect of daily life.The consumer touch screen mainly capacitance type touch control screen that market produces, it is mainly divided into surface-type and projection-type two kinds, wherein projection-type is also known as inductance capacitance touch screen, capacitive touch screen physical construction is simple, and without the need to manual synchronizing, adopt matrix structure, degree of accuracy is very high, is highly suitable on portable type electronic product and uses.
The touch screen device of the market mainstream adopts ITO (IndiumTinOxides, indium tin metal oxide) film is conductive material, this material resources is rare, expensive, industry personage is at its alternative material of research, comprise Graphene, metal grill and AZO (abbreviation of the zinc paste of aluminium doping) film etc.AZO transmitance is poor, and etching line is obvious, causes display effect not good enough.
Summary of the invention
The object of the invention is to overcome above-mentioned the deficiencies in the prior art, provide a kind of OGS capacitive touch screen, it adopts AZO to replace conventional I TO is that conductive material makes capacitive touch screen, with low cost, abundant raw materials.
Technical scheme of the present invention is: provide a kind of OGS capacitive touch screen; comprise transparent glass substrate layers, be covered in the ink layer of described glass substrate layers air surface, be sputtered at first in described ink layer disappear shadow AZO layer, be sputtered at described first disappear insulation course in shadow AZO layer, be sputtered at second on described insulation course disappear shadow AZO layer, be sputtered at the described second metal level disappeared in shadow AZO layer, and be sputtered at the protective seam on described metal level.
Present invention also offers a kind of preparation method of OGS capacitive touch screen, comprise the steps:
Glass substrate layers needed for acquisition, and carry out Ultrasonic Cleaning;
Described ink layer is formed in described glass substrate layers bottom air surface;
Described ink layer makes described first to disappear shadow AZO layer, specifically comprise and be coated with first and disappear shadow layer and adopt wet etching to form an AZO conductive circuit layer;
Disappearing in shadow AZO layer described first adopts magnetron sputtering to be coated with described insulation course;
Described insulation course makes second to disappear shadow AZO layer, specifically comprise and be coated with second and disappear shadow layer and adopt wet etching to form the 2nd AZO conductive circuit layer;
Disappear in shadow AZO layer described second and be coated with metal level, and be coated with protective seam on described metal level.
Present invention also offers a kind of touch control display apparatus, comprise OGS capacitive touch screen as described above.
Implement a kind of OGS capacitive touch screen of the present invention, it has following beneficial effect: adopting AZO to replace conventional I TO is substrate fabrication capacitive touch screen, with low cost, abundant raw materials; To disappear shadow layer by adding plating on AZO film, the obvious problem of etching line can be solved, glass substrate layers air surface adds plating ink layer to improve the transmitance of AZO glass, while its object is to meet touch-screen display effect, improve the performance of AZO base capacitance touch screen device.
Implement the preparation method of a kind of OGS capacitive touch screen of the present invention, it has following beneficial effect: it is with low cost, is very suitable for suitability for industrialized production; For alternative ito glass provides a kind of feasible method in touch-screen field application aspect, achieve simultaneously and adopt AZO to be the lightening of the OGS touch screen structure of conductive material.
Accompanying drawing explanation
Fig. 1 is the structural representation of the OGS capacitive touch screen that the embodiment of the present invention provides;
Fig. 2 is preparation method's process flow diagram of the OGS capacitive touch screen that the embodiment of the present invention provides.
Embodiment
In order to make object of the present invention, technical scheme and advantage clearly understand, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the present invention, be not intended to limit the present invention.
It should be noted that, when element is called as " being fixed on " or " being arranged at " another element, it can directly on another element or may there is centering elements simultaneously.When an element is known as " being connected to " another element, it can be directly connected to another element or may there is centering elements simultaneously.
Also it should be noted that, the orientation term such as left and right, upper and lower in the embodiment of the present invention, is only relative concept or be reference with the normal operating condition of product each other, and should not be regarded as have restrictive.
As shown in Figure 1; the OGS capacitive touch screen that the embodiment of the present invention provides comprises disappear shadow AZO layer 3, insulation course 4, second of the glass substrate layers 1, ink (BlackMatrix, the BM) layer 2, first that are cascading and to disappear shadow AZO layer 5 and metal level 6 and protective seam 7.Particularly; ink layer 2 is covered in the air surface of glass substrate layers 1; the first shadow AZO layer 3 that disappears is sputtered in ink layer 2; insulation course 4 is sputtered at first and disappears in shadow AZO layer 3; the second shadow AZO layer 5 that disappears is sputtered on insulation course 4; metal level 6 is sputtered at second and disappears in shadow AZO layer 5, and protective seam 7 is sputtered on metal level 6.
It is that conductive material makes capacitive touch screen that the present invention adopts AZO to replace conventional I TO, with low cost, abundant raw materials; To disappear shadow layer by adding plating on AZO film, the obvious problem of etching line can be solved, glass substrate layers air surface adds plating ink layer to improve the transmitance of AZO glass, while its object is to meet touch-screen display effect, improve the performance of AZO base capacitance touch screen device.
Further, above-mentioned first shadow AZO the layer 3 and second shadow AZO layer 5 that disappears that disappears is conduction induction layer, and the first shadow AZO layer 3 that disappears comprises first and to disappear shadow layer and a transparent AZO conductive circuit layer, the second shadow AZO layer 5 that disappears comprises second and to disappear shadow layer and the 2nd transparent AZO conductive circuit layer.。Particularly, deposit in ink layer 2 by DC magnetron sputtering method and obtain first and to disappear shadow layer, and obtain an AZO conductive circuit layer by wet etching, and then obtained first disappears shadow AZO layer 3.In addition, then deposited on insulation course 4 by DC magnetron sputtering method and obtain second and to disappear shadow layer, and obtain the 2nd AZO conductive circuit layer by wet etching, and then obtained second disappears shadow AZO layer 5.The embodiment of the present invention shadow AZO layer 3 adds plating first to disappear shadow layer by disappearing first, and disappears second and shadow AZO layer 5 adds plating second and to disappear shadow layer, can solve the obvious problem of etching line.
Preferably, in one embodiment of the invention, above-mentioned first shadow layer and the second shadow layer that disappears that disappears is superposing of niobium pentaoxide rete and silica coating.
Further, the silica coating that is coated with for magnetron sputtering method of insulation course 4.Particularly, to disappear in shadow AZO layer 3 first by medium frequency magnetron sputtering method and be coated with silica coating.
Preferably, the thickness of above-mentioned insulation course 4 is greater than 80nm, to meet the performance requirement of OGS capacitive touch screen.
Further, the above-mentioned first shadow AZO layer 3 and second that disappears disappears shadow AZO layer 5 all by edge metal routing access IC chip, and above-mentioned metal routing can be coated with by serigraphy for silver or copper cabling.Wherein, silver or the conducting electricity very well of copper cabling.
Preferably, the material of above-mentioned glass substrate layers 1 is soda-lime-silica glass or high-boron-silicon glass or high aluminosilicate glass, and its thickness is 0.4mm ~ 2.0mm, such as 0.4mm, 0.55mm, 0.7mm etc.Be understandable that, the concrete thickness of glass substrate layers 1 is selected according to actual needs between 0.4mm ~ 2.0mm.
Present invention also offers a kind of preparation method of OGS capacitive touch screen, as shown in Figure 2, it specifically comprises the following steps:
Step S01, obtain needed for glass substrate layers 1, and carry out Ultrasonic Cleaning;
Step S02, in the air surface of glass substrate layers 1 by negative aobvious exposure method printing-ink layer 2;
Step S03, be coated with by magnetron sputtering the shadow AZO rete that disappears in ink layer 2, and obtain first by wet etching and to disappear shadow AZO layer 3, and by serigraphy edge silver conducting wire;
Step S04, disappearing in shadow AZO layer 3 first is coated with silicon dioxide layer by magnetron sputtering, i.e. insulation course 4.
Step S05, on silicon dioxide layer, be coated with by magnetron sputtering the shadow AZO rete that disappears, and obtain second by wet etching and to disappear shadow AZO layer 5, and by serigraphy edge silver conducting wire;
Step S06, disappearing in shadow AZO layer 5 second is coated with metal level 6, and on metal level 6 protective mulch 7.
Particularly, in step S01, by former for the electronic glass of desired thickness through cutting into required size, then obtain the glass substrate layers 1 needed for plated film through edging, grinding, cleaning.
Particularly, in step S02, glass substrate layers 1 is prepared black or white photoresists by knife coating, utilize exposure method to prepare ink frame figure (black or white), obtain required ink layer 2.
Particularly, in step S03, utilize magnetron sputtering coater plated film, the glass of printing-ink layer 2 enters niobium oxide target position and silicon target target position successively, ink layer 2 is coated with first and disappears shadow layer.First enter niobium pentaoxide target position, preferred Ar tolerance at 200sccm, preferred O
2tolerance is at 100sccm, and preferred sputtering pressure is 3 × 10
-3mbar, target used is twin target, adopts Mid frequency alternative magnetron sputtering to be coated with niobium pentaoxide rete in ink layer 2.After being coated with niobium pentaoxide, enter silicon target target position, preferred Ar tolerance is at 200sccm, O
2tolerance controls to adopt PID to control, and control voltage is at 420V, and preferred sputtering pressure is 3 × 10
-3mbar, target used is twin target, adopts Mid frequency alternative magnetron sputtering to be coated with silica coating on niobium pentaoxide rete, forms first and to disappear shadow layer.Continue to be coated with AZO rete, ensure that feedback resistance is at 50 ~ 80 Ω.The AZO conductive substrate that coated first disappears shadow layer is continued wet etching, by AZO Film preparation diamondwise or grid type figure, completes the first making disappearing shadow AZO layer 3.
Particularly, in step S04, first substrate disappearing shadow AZO layer 3 that has handled well is put into magnetron sputtering coater and is coated with silicon dioxide insulating layer 4, and its thickness, at more than 80nm, completes the making of insulation course 4.
Particularly, in step S05, continued by the substrate with silicon dioxide insulating layer 4 to utilize magnetron sputtering coater to be coated with second to disappear shadow layer and AZO rete, the AZO conductive substrate that coated second disappears shadow layer is continued wet etching, by AZO Film preparation diamondwise or grid type figure, the figure disappearing shadow AZO layer 3 with first is reported to the leadship after accomplishing a task each other and is responded to.
The preparation method of the OGS capacitive touch screen that the present invention is substrate with AZO glass, it is with low cost, is very suitable for suitability for industrialized production.For alternative ito glass provides a kind of feasible method in touch-screen field application aspect, achieve simultaneously and adopt AZO to be the lightening of the OGS touch screen structure of conductive material.
Present invention also offers a kind of touch control display apparatus comprising OGS capacitive touch screen described above.Particularly, adopt the touch control display apparatus of OGS capacitive touch screen of the present invention also in scope.
The research of above material and test by the financial aid of problem " high-performance and low-cost multiple point touching capacitance plate industrialization gordian technique " in national high-tech research development plan (863 Program), project number: 2013AA030602.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, all any amendments done within the spirit and principles in the present invention, equivalent replacement or improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1. an OGS capacitive touch screen, it is characterized in that, comprise transparent glass substrate layers (1), be covered in the ink layer (2) of described glass substrate layers (1) air surface, be sputtered at first on described ink layer (2) to disappear shadow AZO layer (3), be sputtered at the described first insulation course (4) disappeared in shadow AZO layer (3), be sputtered at second on described insulation course (4) to disappear shadow AZO layer (5), be sputtered at the described second metal level (6) disappeared in shadow AZO layer (5), and the protective seam (7) be sputtered on described metal level (6).
2. OGS capacitive touch screen as claimed in claim 1, it is characterized in that, described first disappear shadow AZO layer (3) and second disappear shadow AZO layer (5) be conduction induction layer, and the described first shadow AZO layer (3) that disappears comprises first and to disappear shadow layer and a transparent AZO conductive circuit layer, the described second shadow AZO layer (5) that disappears comprises second and to disappear shadow layer and the 2nd transparent AZO conductive circuit layer.
3. OGS capacitive touch screen as claimed in claim 2, is characterized in that, described first shadow layer and the second shadow layer that disappears that disappears is superposing of niobium pentaoxide rete and silica coating.
4. OGS capacitive touch screen as claimed in claim 1, is characterized in that, the silica coating that described insulation course (4) is coated with for magnetron sputtering method.
5. OGS capacitive touch screen as claimed in claim 4, it is characterized in that, the thickness of described insulation course (4) is greater than 80nm.
6. OGS capacitive touch screen as claimed in claim 1, it is characterized in that, the described first shadow AZO layer (3) and second that disappears disappears shadow AZO layer (5) all by edge metal routing access IC chip, and described metal routing is coated with by serigraphy for silver or copper cabling.
7. OGS capacitive touch screen as claimed in claim 1, is characterized in that, described glass substrate layers (1) is soda-lime-silica glass or high-boron-silicon glass or high aluminosilicate glass.
8. OGS capacitive touch screen as claimed in claim 1, it is characterized in that, the thickness of described glass substrate layers (1) is 0.4mm ~ 2.0mm.
9. a preparation method for OGS capacitive touch screen, is characterized in that, comprises the steps:
Glass substrate layers (1) needed for acquisition, and carry out Ultrasonic Cleaning;
Ink layer (2) is formed in described glass substrate layers (1) bottom air surface;
To disappear shadow AZO layer (3) in the upper making first of described ink layer (2), specifically comprise and be coated with first and disappear shadow layer and adopt wet etching to form an AZO conductive circuit layer;
Insulation course (4) is coated with at the described first upper magnetron sputtering that adopts of shadow AZO layer (3) that disappears;
To disappear shadow AZO layer (5) in the upper making second of described insulation course (4), specifically comprise and be coated with second and disappear shadow layer and adopt wet etching to form the 2nd AZO conductive circuit layer;
Disappear in shadow AZO layer (5) described second and be coated with metal level (6), and be coated with protective seam (7) on described metal level (6).
10. a touch control display apparatus, is characterized in that, comprises the OGS capacitive touch screen as described in any one of claim 1-8.
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| CN201510796768.9A CN105353930A (en) | 2015-11-17 | 2015-11-17 | OGS capacitive touch screen, preparation method thereof and touch display device |
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| CN201510796768.9A CN105353930A (en) | 2015-11-17 | 2015-11-17 | OGS capacitive touch screen, preparation method thereof and touch display device |
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| CN106502473A (en) * | 2017-01-04 | 2017-03-15 | 京东方科技集团股份有限公司 | Touch base plate and preparation method thereof, touch screen |
| CN107957818A (en) * | 2017-12-26 | 2018-04-24 | 信利光电股份有限公司 | A kind of touch-screen module, touch-screen and electronic display unit |
| CN108920029A (en) * | 2018-06-28 | 2018-11-30 | 信利光电股份有限公司 | A kind of novel OGS touch screen and electronic equipment |
| CN109002204A (en) * | 2018-06-28 | 2018-12-14 | 信利光电股份有限公司 | A kind of OGS touch screen and electronic equipment |
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| CN205176821U (en) * | 2015-11-17 | 2016-04-20 | 信义光伏产业(安徽)控股有限公司 | OGS capacitive touch screen and touch -sensitive display device |
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| CN107957818A (en) * | 2017-12-26 | 2018-04-24 | 信利光电股份有限公司 | A kind of touch-screen module, touch-screen and electronic display unit |
| CN108920029A (en) * | 2018-06-28 | 2018-11-30 | 信利光电股份有限公司 | A kind of novel OGS touch screen and electronic equipment |
| CN109002204A (en) * | 2018-06-28 | 2018-12-14 | 信利光电股份有限公司 | A kind of OGS touch screen and electronic equipment |
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Application publication date: 20160224 |