CN102830841A - Touch screen, touch display device and production method of touch screen - Google Patents
Touch screen, touch display device and production method of touch screen Download PDFInfo
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- CN102830841A CN102830841A CN2012102891622A CN201210289162A CN102830841A CN 102830841 A CN102830841 A CN 102830841A CN 2012102891622 A CN2012102891622 A CN 2012102891622A CN 201210289162 A CN201210289162 A CN 201210289162A CN 102830841 A CN102830841 A CN 102830841A
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Abstract
The invention discloses a touch screen, a touch display device and a production method of the touch screen. The touch screen comprises first electrodes, second electrodes, second electrode connecting wires, first electrode connecting wires, insulating blocks and a protective layer. The first electrodes, the second electrodes and the second electrode connecting wires are arranged on a first level. The first electrodes and the second electrodes intersect with each other. The second electrode connecting wires connect the adjacent second electrodes at the intersection. The first electrode connecting wires on a second level connect the adjacent first electrodes at the intersection in an overlapping manner. The insulating blocks located between the first electrode connecting wires and the second electrode connecting wires are overlapped with the first electrode connecting wires. The arrangement size of the insulating blocks in the direction of the first electrodes is smaller than the length of each first electrode connecting wire, and the arrangement size of the insulating block in the direction of the second electrodes is not smaller than the width of each first electrode connecting wire. The protective layer is arranged above the structure of the first level, the insulating blocks and the second level. Light transmissivity of the touch screen is improved greatly, macroscopic color effect is improved, and touch resistance between the first electrodes is also reduced.
Description
Technical field
The present invention relates to touch-control display technique field, particularly relate to the manufacturing approach of a kind of touch-screen, touch control display apparatus and a kind of touch-screen.
Background technology
Touch-screen is as a kind of input media, than keyboard and mouse, for the user provides better convenience.According to different realization principles, touch-screen can be divided into resistance-type, condenser type, surface acoustic wave type, infrared type and flexural wave formula, active digital converter formula and optical imagery formula etc.What be widely used at present is resistance-type and capacitive touch screen technology, in the structure of these two kinds of touch-screens, all the transparent metal electrode need be set.
Compare with resistive touch screen, capacitive touch screen have the reaction time fast, fiduciary level is good and the durability advantages of higher.Capacitive touch screen comprises surface capacitance type and inductance capacitance formula; And inductance capacitance formula touch-screen can be divided into self-capacitance formula and mutual capacitance type; Wherein, the mutual capacitance type touch-screen relies on the advantage of its higher sensitivity and multi-point touch, receives pursuing of more and more consumers.
Shown in Fig. 1 a and Fig. 1 b; The mutual capacitance type touch-screen (for example adopts transparent metal oxide; Tin indium oxide ITO etc.) on transparency carrier, make pixel electrode; Said pixel electrode comprises first electrode 10 and second electrode 11, and said first electrode 10 connects through first electrode connecting line 12, and said second electrode 11 connects through second electrode connecting line 13; Wherein, First electrode connecting line 12 and second electrode connecting line 13 are isolated (insulation course 16 has the via hole 16a with first electrode connecting line 12 and first electrode, 10 overlap joints, and the concrete structure of insulation course is please with reference to shown in Fig. 2 b) and are formed mutual capacitance (being crossover location mutual capacitance 14) through insulation course at infall, and between first electrode 10 and second electrode 11, also can form mutual capacitance (being mutual capacitance 15 between the electrode).When touch screen; Owing to influence the coupling between near two electrodes in touch point; Thereby changed the electric capacity between two electrodes, through detecting the capacitance that the mutual capacitance size can obtain all first electrodes and the second electrode joint place, and then confirmed all touch point position.
Traditional mutual capacitance type touch-screen adopts 4 mask composition technologies to form usually, and idiographic flow is:
Step 1, on transparency carrier, form transparent conductive film, through the first time mask composition technology form the first electrode connecting line figure, shown in Fig. 2 a;
Step 2, on the substrate of completing steps one, form insulation course, through the second time mask composition technology be formed for connecting the via pattern of first electrode connecting line and first electrode, shown in Fig. 2 b;
Step 3, on the substrate of completing steps two, form transparent metal oxide film, form second electrode, second electrode connecting line and first electrode pattern through mask composition technology for the third time, shown in Fig. 2 c;
Step 4, on the substrate of completing steps three, form protective seam, form the connecting hole figure through the 4th mask composition technology.
The defective that prior art exists is; In traditional mutual capacitance type touch-screen; Because there be (insulation course covers whole base plate except that via hole) in the insulation course large tracts of land; Insulating layer material can significantly reduce the light transmission rate of whole touch screen to effects such as the absorption of light, reflections, influences the display effect of touch control display apparatus; When the insulation course material is silicon nitride etc. when having the material of certain color, if the thickness of insulation course is thicker, can make to have certain color on the touch-screen macroscopic view, this also has certain influence to the display effect of touch control display apparatus; In addition, the setting of insulation course via hole has also increased by first electrode connecting line and first electrode contact resistance in this position.
Summary of the invention
The invention provides the manufacturing approach of a kind of touch-screen, touch control display apparatus and a kind of touch-screen; Significantly reduce the light transmission rate of touch-screen because the insulation course large tracts of land exists in order to solve in the prior art, and then influenced the technical matters of the display effect of touch control display apparatus.
Touch-screen of the present invention comprises on transparency carrier:
Be positioned at first electrode, second electrode and second electrode connecting line on first aspect, said first electrode and second electrode are to intersect to be arranged, and said second electrode connecting line connects the second adjacent electrode at infall;
Be positioned at first electrode connecting line on second aspect, the first adjacent electrode overlapped at infall;
The collets that between first electrode connecting line and second electrode connecting line and with first electrode connecting line, overlap; Said collets are not less than the width of first electrode connecting line in the size of the first electrode spread direction length less than first electrode connecting line in the size of the second electrode spread direction;
Protective seam, be positioned at first aspect, collets and second structure that aspect forms on.
Touch control display apparatus of the present invention comprises the touch-screen described in the aforementioned techniques scheme.
The manufacturing approach of touch-screen of the present invention comprises:
On transparency carrier, form the first electrode connecting line figure;
On the substrate that forms first electrode connecting line, form the collets figure;
On the substrate that forms collets, form first electrode, second electrode and the second electrode connecting line figure; Said first electrode and second electrode are to intersect to be arranged; Said second electrode connecting line connects the second adjacent electrode at infall, and the first adjacent electrode connects through first electrode connecting line at infall;
On the substrate that forms first electrode, second electrode and second electrode connecting line, form protective seam;
Wherein, said collets and first electrode connecting line overlap, and in the size of the first electrode spread direction length less than first electrode connecting line, are not less than the width of first electrode connecting line in the size of the second electrode spread direction.
The manufacturing approach of touch-screen of the present invention comprises:
On transparency carrier, form first electrode, second electrode and the second electrode connecting line figure, said first electrode and second electrode are to intersect to be arranged, and said second electrode connecting line connects the second adjacent electrode at infall;
On the substrate that forms first electrode, second electrode and second electrode connecting line, form the collets figure;
On the substrate that forms collets, form the first electrode connecting line figure, said first electrode connecting line overlaps the first adjacent electrode at infall;
On the substrate that forms first electrode connecting line, form protective seam;
Wherein, said first electrode connecting line and said collets overlap, and said collets are not less than the width of first electrode connecting line in the size of the first electrode spread direction length less than first electrode connecting line in the size of the second electrode spread direction.
In technical scheme of the present invention; Because first electrode connecting line directly overlaps the first adjacent electrode at first electrode and the second electrode spread infall; Collets are arranged between first electrode connecting line and second electrode connecting line, and first electrode connecting line and the insulation of second electrode connecting line are isolated, and in contrast to prior art; Collets significantly reduce than the area coverage of insulation course, have improved the light transmission rate of touch-screen; And, improved macroscopical color effects that extensive insulation layer material itself brought; Meanwhile, owing to cancelled via hole of the prior art, also significantly reduced the contact resistance that is connected with first electrode connecting line through via hole between first electrode.
Description of drawings
Fig. 1 a is existing mutual capacitance type touch screen structure synoptic diagram;
Fig. 1 b is the partial structurtes enlarged diagram at A place among Fig. 1 a;
Fig. 2 a structural representation that is the prior art substrate after first time mask composition technology;
Fig. 2 b structural representation that is the prior art substrate after second time mask composition technology;
Fig. 2 c structural representation that is the prior art substrate after mask composition technology for the third time;
Fig. 3 is a touch screen structure synoptic diagram of the present invention;
Fig. 4 is substrate of the present invention structural representation after second time mask composition technology;
Fig. 5 is the manufacturing approach one embodiment process chart of touch-screen of the present invention;
Fig. 6 is another embodiment process chart of manufacturing approach of touch-screen of the present invention.
Reference numeral:
The 10-first electrode 11-second electrode
The 12-first electrode connecting line 13-second electrode connecting line
Mutual capacitance between the 14-crossover location mutual capacitance 15-electrode
16-insulation course 16a-via hole
The 160-collets
Embodiment
The insulation course large tracts of land exists in the prior art in order to solve, and has significantly reduced the light transmission rate of touch-screen, influences the technical matters of the display effect of touch control display apparatus, the invention provides the manufacturing approach of a kind of touch-screen, touch control display apparatus and a kind of touch-screen.
As shown in Figure 3, touch-screen of the present invention comprises on transparency carrier:
Be positioned at first electrode 10, second electrode 11 and second electrode connecting line 13 on first aspect, said first electrode 10 and second electrode 11 are to intersect to be arranged, said second electrode connecting line 13 infall will be adjacent 11 connections of second electrode;
Be positioned at first electrode connecting line 12 on second aspect, the first adjacent electrode 10 overlapped at infall;
The collets 160 that between first electrode connecting line 12 and second electrode connecting line 13 and with first electrode connecting line 12, overlap; Said collets 160 are not less than the width of first electrode connecting line 12 in the size of the first electrode spread direction length less than first electrode connecting line 12 in the size of the second electrode spread direction;
Protective seam, be positioned at first aspect, collets 160 and second structure that aspect forms on.
The material of said transparency carrier can be glass or transparent resin, transparent plastic etc.The intersecting angle that first electrode 10 and second electrode 11 are arranged is not limit, and preferably is 90 degree cross arrangements.The shape of first electrode 10 and second electrode 11 is not limit, and for example can be rectangle, and circle etc. preferably adopt rhombus in embodiments of the present invention.First electrode connecting line 12 can adopt molybdenum metals such as (Mo).
In an embodiment of the present invention; Said collets 160 are in the size of first electrode, the 10 orientations length less than first electrode connecting line 12; Be not less than the width of first electrode connecting line 12 in the size of second electrode, 11 orientations, can realize like this and can first electrode connecting line 12 and 13 insulation of second electrode connecting line be isolated.Preferably; Said collets 160 are at the size of second electrode, the 11 orientations width greater than first electrode connecting line 12; To be " ten " font arranged in a crossed manner, more easy to control on manufacturing process like this with first electrode connecting line 12, can further practice thrift the technology cost.
In the embodiment shown in fig. 3, first electrode connecting line 12 is formed on the transparency carrier; Collets 160 are formed on first electrode connecting line 12, and to be " ten " font arranged in a crossed manner with first electrode connecting line 12; First electrode 10, second electrode 11 and second electrode connecting line 13 are formed on the substrate after forming collets 160.In additional embodiments of the present invention, structure can also be that first electrode, second electrode and second electrode connecting line are formed on the transparency carrier; Collets are covered on second electrode connecting line; First electrode connecting line is formed on the substrate after forming collets, and be " ten " font with collets arranged in a crossed manner.
The thicknesses of layers scope of first electrode 10, second electrode 11 and second electrode connecting line 13 is preferably 200 dust to 800 dusts.
In technical scheme of the present invention; Because first electrode connecting line directly overlaps the first adjacent electrode at first electrode and the second electrode spread infall; Collets are arranged between first electrode connecting line and second electrode connecting line, and first electrode connecting line and the insulation of second electrode connecting line are isolated, and in contrast to prior art; Collets significantly reduce than the area coverage of insulation course, have improved the light transmission rate of touch-screen; In the prior art, when the insulation course material is silicon nitride, because there is certain color problem in silicon nitride itself; Can make and have certain color on the touch-screen macroscopic view; Especially when insulation course was thicker, macroscopical color problem can not ignore especially, and the present invention adopts the structural design of small size collets; Area coverage significantly reduces, and has greatly improved macroscopical color effects that insulation material itself is brought; Meanwhile, owing to cancelled via hole of the prior art, also significantly reduced the contact resistance that is connected with first electrode connecting line through via hole between first electrode.
Touch control display apparatus of the present invention comprises the touch-screen described in the aforementioned techniques scheme, has higher light transmission rate, and display effect is preferable.
As shown in Figure 5, manufacturing approach one embodiment of touch-screen of the present invention still adopts mask composition technology 4 times, and idiographic flow is:
In the mask process, on substrate, form rete and generally include multiple thin film-forming methods such as deposition, coating, sputter, different according to the material of thin layer, selected film-forming process also is not quite similar.For example, adopt physical vapour deposition (PVD) mode film forming usually for the metal level film, and adopt chemical vapor deposition mode film forming usually for the non-metallic layer film, the following steps reason is identical, repeats no more here.
As shown in Figure 6, another embodiment of the manufacturing approach of touch-screen of the present invention adopts mask composition technology 4 times, and idiographic flow is:
Step 601, on transparency carrier, form first electrode, second electrode and the second electrode connecting line figure, said first electrode and second electrode are to intersect to be arranged, said second electrode connecting line infall will be adjacent the connection of second electrode; This step is specially: on transparency carrier, form transparent conductive film, through the first time mask composition technology form first electrode, second electrode and the second electrode connecting line figure.
Step 602, form the collets figure on the substrate of first electrode, second electrode and second electrode connecting line forming; This step is specially: on the substrate that forms first electrode, second electrode and second electrode connecting line, form insulation course, through mask composition technology formation second time collets figure.
Step 603, form the first electrode connecting line figure on the substrate of collets forming, said first electrode connecting line infall will be adjacent first electrode overlap; This step is specially: form conductive film forming on the substrate of collets, form the first electrode connecting line figure through mask composition technology for the third time.
Step 604, form protective seam forming on the substrate of first electrode connecting line, in order to preventing the scuffing of outer bound pair electrode, form the connecting hole figure in peripheral signal guidance district through the 4th mask composition technology.
Wherein, said first electrode connecting line and said collets overlap, and said collets are not less than the width of first electrode connecting line in the size of the first electrode spread direction length less than first electrode connecting line in the size of the second electrode spread direction.
It is thus clear that; The inventive method embodiment in contrast to prior art; Not only improve the light transmission rate of touch-screen, improved macroscopical color effects that insulation material itself is brought, reduced the contact resistance of crossing the hole site; And do not need extra increase mask composition operation or apply operation, do not increase extra manufacturing cost.
Obviously, those skilled in the art can carry out various changes and modification to the present invention and not break away from the spirit and scope of the present invention.Like this, belong within the scope of claim of the present invention and equivalent technologies thereof if of the present invention these are revised with modification, then the present invention also is intended to comprise these changes and modification interior.
Claims (10)
1. a touch-screen is characterized in that, on transparency carrier, comprises:
Be positioned at first electrode, second electrode and second electrode connecting line on first aspect, said first electrode and second electrode are to intersect to be arranged, and said second electrode connecting line connects the second adjacent electrode at infall;
Be positioned at first electrode connecting line on second aspect, the first adjacent electrode overlapped at infall;
The collets that between first electrode connecting line and second electrode connecting line and with first electrode connecting line, overlap; Said collets are not less than the width of first electrode connecting line in the size of the first electrode spread direction length less than first electrode connecting line in the size of the second electrode spread direction;
Protective seam, be positioned at first aspect, collets and second structure that aspect forms on.
2. touch-screen as claimed in claim 1 is characterized in that, said first electrode connecting line is formed on the transparency carrier.
3. touch-screen as claimed in claim 1 is characterized in that, said first electrode, second electrode, second electrode connecting line are formed on the transparency carrier.
4. touch-screen as claimed in claim 1 is characterized in that, said first electrode is for driving transparency electrode, and said second electrode is for surveying transparency electrode.
5. touch-screen as claimed in claim 1 is characterized in that, said first electrode is for surveying transparency electrode, and said second electrode is for driving transparency electrode.
6. touch-screen as claimed in claim 1 is characterized in that, the thicknesses of layers scope of said first electrode, second electrode and second electrode connecting line is 200 dust to 800 dusts.
7. touch-screen as claimed in claim 1 is characterized in that, said first electrode and the second electrode square crossing are arranged.
8. a touch control display apparatus is characterized in that, comprises like each described touch-screen in the claim 1 ~ 7.
9. the manufacturing approach of a touch-screen is characterized in that, comprising:
On transparency carrier, form the first electrode connecting line figure;
On the substrate that forms first electrode connecting line, form the collets figure;
On the substrate that forms collets, form first electrode, second electrode and the second electrode connecting line figure; Said first electrode and second electrode are to intersect to be arranged; Said second electrode connecting line connects the second adjacent electrode at infall, and the first adjacent electrode connects through first electrode connecting line at infall;
On the substrate that forms first electrode, second electrode and second electrode connecting line, form protective seam;
Wherein, said collets and first electrode connecting line overlap, and in the size of the first electrode spread direction length less than first electrode connecting line, are not less than the width of first electrode connecting line in the size of the second electrode spread direction.
10. the manufacturing approach of a touch-screen is characterized in that, comprising:
On transparency carrier, form first electrode, second electrode and the second electrode connecting line figure, said first electrode and second electrode are to intersect to be arranged, and said second electrode connecting line connects the second adjacent electrode at infall;
On the substrate that forms first electrode, second electrode and second electrode connecting line, form the collets figure;
On the substrate that forms collets, form the first electrode connecting line figure, said first electrode connecting line overlaps the first adjacent electrode at infall;
On the substrate that forms first electrode connecting line, form protective seam; Wherein, said first electrode connecting line and said collets overlap, and said collets are not less than the width of first electrode connecting line in the size of the first electrode spread direction length less than first electrode connecting line in the size of the second electrode spread direction.
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| CN2012102891622A CN102830841A (en) | 2012-08-14 | 2012-08-14 | Touch screen, touch display device and production method of touch screen |
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| CN2012102891622A CN102830841A (en) | 2012-08-14 | 2012-08-14 | Touch screen, touch display device and production method of touch screen |
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| CN104216598A (en) * | 2014-08-29 | 2014-12-17 | 合肥鑫晟光电科技有限公司 | Touch substrate, manufacturing method of touch substrate and touch display device |
| CN105824445A (en) * | 2015-01-07 | 2016-08-03 | 群创光电股份有限公司 | Touch control sensing device and manufacturing method thereof |
| TWI552038B (en) * | 2013-05-08 | 2016-10-01 | Gunze Kk | Touch panels, display devices and electronic devices |
| TWI607354B (en) * | 2015-01-07 | 2017-12-01 | 群創光電股份有限公司 | Touch sensor device and method for fabricating the same |
| WO2018035934A1 (en) * | 2016-08-24 | 2018-03-01 | 武汉华星光电技术有限公司 | Touch screen and touch sensing assembly thereof |
| CN113220173A (en) * | 2021-05-28 | 2021-08-06 | 上海天马有机发光显示技术有限公司 | Display panel and display device |
| WO2022222615A1 (en) * | 2021-04-20 | 2022-10-27 | 京东方科技集团股份有限公司 | Touch substrate, display panel, and electronic device |
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| CN115669277A (en) * | 2021-04-20 | 2023-01-31 | 京东方科技集团股份有限公司 | Display panel, preparation method thereof and display device |
| CN115669277B (en) * | 2021-04-20 | 2024-04-02 | 京东方科技集团股份有限公司 | Display panel, preparation method thereof and display device |
| CN113220173A (en) * | 2021-05-28 | 2021-08-06 | 上海天马有机发光显示技术有限公司 | Display panel and display device |
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Application publication date: 20121219 |