CN103744565A - Touch screen and manufacturing method thereof - Google Patents
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- CN103744565A CN103744565A CN201410009031.3A CN201410009031A CN103744565A CN 103744565 A CN103744565 A CN 103744565A CN 201410009031 A CN201410009031 A CN 201410009031A CN 103744565 A CN103744565 A CN 103744565A
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Abstract
The invention relates to a touch screen. The touch screen comprises a panel substrate, a shading layer which covers the periphery of the panel substrate and forms a border outside a touch screen window, a transparent insulating layer which covers the panel substrate and the shading layer together and smoothly transits from the surface of the shading layer to the surface of the panel substrate to eliminate a height difference produced between the shading layer and the panel substrate, and a transparent conducting layer covering the transparent insulating layer. Compared with the prior art, the touch screen has the advantages that the height difference produced between the shading layer and the panel substrate is eliminated, and the phenomenon of burr on the edge of the shading layer is avoided, thereby completely avoiding the situations of fracture and break points when the transparent conducting layer covers the transparent insulating layer, increasing the yield of the touch screen and reducing the production cost.
Description
Technical field
The present invention relates to a kind of touch-screen, specifically a kind of capacitive touch screen.
Background technology
Touch-screen, man-machine conversation is carried out in available finger touch operation, is generally used in touch-screen mobile phone, touch-screen PDA, panel computer, in automatic navigator and other industrial control equipments.User can, directly to operate, save operation push-button by touch-screen, has strengthened man-machine interactive.
Along with scientific and technical development, there is capacitive touch screen, this kind of touch-screen become the new touch apparatus of electronic equipment such as mobile phone, notebook.Because capacitive touch screen is compared with traditional touch-screen, there is multipoint-touch-technology, its location is more precisely reliable.
And at present, when making capacitive touch screen, in order to make the border color of touch-screen there is abundanter color, be generally all first frame ink to be covered on the panel base material of touch-screen, and then ITO conductive layer is covered together with panel base material and frame ink.Owing to first covering frame ink on panel base material, between the frame ink that can make and panel base material, there is a drop on height, so when covering ITO conductive layer, be all generally the technique that adopts climbing, ITO conductive layer is directly climbed to the back side of frame ink.
But due to when covering frame ink; the edge of frame ink there will be a large amount of burrs; and owing to there will be a drop on height between frame ink and panel base material; cause when sputter or printing ITO conductive layer; the climbing of the panel base material from touch screen window region that cannot be smooth-going is to the back side of frame ink; often have the situation that fracture appears in ITO conductive layer, cause the yields of touch-screen extremely low, thereby improved production cost.
Summary of the invention
The present invention, in order to overcome the deficiencies in the prior art, has designed a kind of touch-screen, occurs the situation of fracture to overcome transparency conducting layer when frame ink is climbed, and improves its product yield.
To achieve these goals, the invention provides a kind of touch-screen, comprise panel base material, cover the light shield layer of described panel base material surrounding, described light shield layer forms the frame outside touch screen window,
Described touch-screen also comprises: the transparent insulating layer that described panel base material and described light shield layer are together covered;
Wherein, described transparent insulating layer is transitioned into the surface of described panel base material from the surface smoothing of described light shield layer, eliminates the height fall producing between described light shield layer and described panel base material;
Described touch-screen also comprises: cover the transparency conducting layer on described transparent insulating layer.
In addition, the present invention also provides a kind of method for making of touch-screen, comprises following steps:
S1, provide a panel base material;
S2, the frame pattern required according to touch-screen outward appearance, cover light shield layer in the surrounding of described panel base material, makes described light shield layer form the frame outside described touch screen window;
S3, on the panel base material with described light shield layer, cover transparent insulating layer; When covering, described transparent insulating layer is smoothly transitted on described panel base material from described light shield layer, by described transparent insulating layer, eliminate the height fall producing between described light shield layer and described panel base material;
S4, on transparent insulating layer, cover transparency conducting layer.
Embodiments of the present invention in terms of existing technologies, owing to first covering transparent insulating layer on the panel base material with light shield layer before covering transparency conducting layer, this transparent insulating layer together covers light shield layer and panel base material, and when covering transparent insulating layer, transparent insulating layer is slowly level and smooth being transitioned on light shield layer, thereby eliminated the height fall producing between light shield layer and panel base material, and by transparent insulating layer, light shield layer can be hidden completely, stop the burr phenomena at light shield layer edge.So when transparency conducting layer covers on transparent insulating layer, can avoid occurring the situation of fracture and breakpoint completely, the yields during production that has improved touch-screen, has reduced production cost.
Wherein, in order to meet light shield layer described in the demand in market, be black out ink, by the mode of printing, black out ink is printed on to the surrounding of described panel base material; Or described light shield layer is shading Coating Materials, by the mode of plated film, the surrounding by shading Coating Materials sputter at described panel base material.
Further, in order to meet the demand in market, described black out ink can adopt electrically conductive ink or non-conductive ink.And described shading Coating Materials can adopt plated film non-conducting material or plated film conductive material.Wherein, electrically conductive ink can be selected ink for screen printing, silver slurry or carbon slurry.Make the present invention have a wide range of applications scene, to meet the user demand of different user.
In addition, in order to meet the demand in market, described transparent insulating layer adopts silicon dioxide insulating layer, or other have the insulation course of transparent materials making of insulating property.In actual production run, described transparent insulating layer adopts the mode of printing to be printed on the panel base material with described light shield layer.Or described transparent insulating layer also can adopt the mode sputter of plated film on the panel base material with described light shield layer.
In addition, in order to meet the demand in market, described transparency conducting layer is the conductive layer that tin indium oxide ITO conductive layer or other transparent materials with electric conductivity are made.In actual production run, described transparency conducting layer can adopt the mode of plated film, and sputter is on described transparent insulating layer.Or described transparency conducting layer adopts the mode of printing to be printed on described transparent insulating layer.
Wherein, the transparency conducting layer that is positioned at described touch screen window region be formed for detecting described touch-screen contact position circuit pattern; The transparency conducting layer that is positioned at described touch-screen frame region forms the conducting wire being connected with described circuit pattern.In actual production run, described circuit pattern and conducting wire can adopt the mode of etching or printing to form on transparency conducting layer.And in actual use procedure, circuit pattern is for responding to the contact position of user when touch-control, and conducting wire is used for this contact position to be uploaded to cell phone mainboard, and by cell phone mainboard, analysis and calculation is carried out in this contact, thereby realize the location, position of coordinate points.
Further, in order to meet the demand in market, described panel base material can adopt glass material, polycarbonate material, acrylic board PMMA material or polyethylene terephtalate material to make.To meet the demand of different user.
Accompanying drawing explanation
Fig. 1 is the structural representation of the capacitive touch screen of first embodiment of the invention;
Fig. 2 is the process chart of the method for making of the touch-screen of second embodiment of the invention;
Fig. 3 is according to the structural representation of sputtering equipment in the method for making of the touch-screen of second embodiment of the invention;
Fig. 4 is according to the schematic diagram that is furnished with the half tone of frame pattern in the method for making of the touch-screen of third embodiment of the invention;
Fig. 5 is according to adopting scraper that ink is transferred to the schematic diagram on panel base material by the frame pattern on half tone in the manufacture method of the capacitive touch screen of third embodiment of the invention.
Embodiment
For making the object, technical solutions and advantages of the present invention clearer, below in conjunction with accompanying drawing, the embodiments of the present invention are explained in detail.But, persons of ordinary skill in the art may appreciate that in the each embodiment of the present invention, in order to make reader understand the application better, many ins and outs have been proposed.But, even without these ins and outs and the many variations based on following embodiment and modification, also can realize the each claim of the application technical scheme required for protection.
The first embodiment of the present invention relates to a kind of touch-screen, as shown in Figure 1, comprises panel base material 1, covers the light shield layer 2 of panel base material 1 surrounding.Wherein, light shield layer 2 forms the frame outside present embodiment touch screen window.
The touch-screen of present embodiment also comprises: the transparent insulating layer 3 that panel base material 1 and light shield layer 2 are together covered.Wherein, transparent insulating layer 3, when covering, is the surface that is transitioned into panel base material 1 from the surface smoothing of light shield layer 2, thereby eliminates the height fall producing between light shield layer 2 and panel base material 1.
In addition, the touch-screen of present embodiment also comprises: cover the transparency conducting layer 4 on transparent insulating layer 3.
As shown in the above, owing to first covering transparent insulating layer 3 on the panel base material 1 with light shield layer 2 before covering transparency conducting layer 4, this transparent insulating layer 3 together covers light shield layer 2 and panel base material 1, and when covering 3 layers of transparent insulations, transparent insulating layer 3 is slowly level and smooth being transitioned on light shield layer 2, thereby eliminated the height fall producing between light shield layer 2 and panel base material 1, the vertical bank of having avoided transparency conducting layer to produce when light shield layer 2 is transitioned into panel base material.And by transparent insulating layer 3, light shield layer 2 can be hidden completely, stop the burr phenomena at light shield layer 2 edges.So when transparency conducting layer 4 covers on transparent insulating layer 3, can avoid the situation of transparency conducting layer appearance fracture and breakpoint completely, improved the yields of touch-screen, reduced production cost.
Wherein, the transparency conducting layer 4 that is positioned at touch screen window region can be formed for detecting the circuit pattern of touch-screen contact position.And the transparency conducting layer 4 that is positioned at touch-screen frame region forms the conducting wire being connected with circuit pattern.In actual production run, described circuit pattern and conducting wire can adopt the mode of etching or printing to form on transparency conducting layer.In actual use procedure, circuit pattern is for responding to the contact position of user when touch-control, and conducting wire is used for this contact position to be uploaded to cell phone mainboard, and by cell phone mainboard, analysis and calculation is carried out in this contact, thereby realize the location, position of coordinate points.
Specifically, in order to meet the demand in market, in the present embodiment, circuit pattern can be the diamond structure of array on transparency conducting layer 4.Or circuit pattern 4 is can be the strip structure of array on transparency conducting layer 4.And when circuit pattern adopts diamond structure, in order to make the position of touch of its touch-screen more accurate, can directly diamond structure be designed to square.
In addition, it is worth mentioning that, in order to meet the demand in market, light shield layer 2 can adopt black out ink or shading Coating Materials.Wherein black out ink can adopt electrically conductive ink or non-conductive ink, and shading Coating Materials adopts plated film conductive material or plated film non-conducting material.When adopting during electrically conductive ink, its electrically conductive ink can select ink for screen printing, silver slurry, carbon slurry or other to have the material of electric conductivity.Thereby make the present invention have a wide range of applications scene, to meet the user demand of different user.And further, in order to meet the demand in market, in the present embodiment, panel base material 1 can adopt glass material, PC material, PMMA material or PET material to make.
And in order to meet the demand in market, transparent insulating layer 3 can adopt silicon dioxide insulating layer, the conductive layer that transparency conducting layer can adopt tin indium oxide ITO conductive layer or other transparent materials to make.And when adopting ITO conductive layer, because ITO conductive layer self has very strong electric conductivity, when user's contact panel, the electric capacity of certain point of the ITO conductive layer on panel base material can change, and the electric capacity that this point is changed is uploaded in complete machine mainboard by conducting wire.
The second embodiment of the present invention relates to a kind of method for making of touch screen, as shown in Figure 2, comprises following steps,
Wherein, in step 502, to 504 step, be mainly to adopt the sputter shower nozzle of sputtering equipment to complete the coating process of light shield layer, transparent insulating layer and transparency conducting layer.
Specifically, as shown in Figure 3, sputtering equipment comprises three sputter shower nozzles, is followed successively by for the first sputter shower nozzle 5 of sputter light shield layer, for the second sputter shower nozzle 6 of sputter transparent insulating layer and for the 3rd sputter shower nozzle 7 of sputter transparency conducting layer.In actual production run, panel base material 1 passes through the first sputter shower nozzle 5, the second sputter shower nozzle 6 and the 3rd sputter shower nozzle 7 of sputtering equipment successively, thereby completes the coating process of light shield layer, transparent insulating layer and transparency conducting layer.
In addition, in actual coating process, the coating film thickness of transparent insulating layer is at least greater than 12nm, preferably be greater than 25mm, with this, can make the slow level and smooth surface that is transitioned into light shield layer 2 of transparent insulating layer 3, thereby eliminate the height fall producing between light shield layer 2 and panel base material 1, can avoid fracture that transparency conducting layer produces in when climbing and the situation of breakpoint completely, thereby the yields that has improved touch-screen, has reduced production cost.
Be not difficult to find, present embodiment is the embodiment of the touch-screen method for making corresponding with the first embodiment, present embodiment can with the enforcement of working in coordination of the first embodiment.The correlation technique details of mentioning in the first embodiment is still effective in the present embodiment, in order to reduce repetition, repeats no more here.Correspondingly, the correlation technique details of mentioning in present embodiment also can be applicable in the first embodiment.
The 3rd embodiment of the present invention relates to a kind of method for making of touch-screen, the 3rd embodiment and the second embodiment are roughly the same, its key distinction is: in the present embodiment, light shield layer, transparent insulating layer and transparency conducting layer also can adopt typography.
Wherein, take the typography of light shield layer as example, be specially and can adopt black out ink printing, comprise following steps:
Step 401, first black out ink is coated on half tone 10.Wherein, shown in Fig. 4, on half tone 10, be furnished with the frame pattern 11 representing outside touch screen window.Owing to having adopted the half tone 10 that is furnished with the frame pattern 11 representing outside touch screen window, make when pattern changes, directly replace half tone 10 and just can change easily frame pattern, it is convenient not only to replace, and with low cost.In actual applications, half tone 10 can be one deck grenadine that is furnished with frame pattern 11, and ink is penetrated on panel base material 1 by the yarn hole of grenadine.Because half tone 10 can adopt the grenadine that is furnished with frame pattern, further make the method for making of present embodiment touch-screen when frame pattern changes, replace conveniently, and also with low cost.
Step 402, adopts scraper 13 that black out ink is transferred on panel base material 1 by the frame pattern 11 on half tone 10, and the panel base material 1 of frame pattern 11 that obtained transfer printing, shown in Fig. 5.Owing to adopting scraper 13 can realize printing, make production equipment and technique simple, thereby reduce production costs.In actual applications, scraper 13 can be to adopt a kind of special rubber to make, and is used for scraping black out ink, and the logical yarn passing hole of black out ink is penetrated on panel base material 1.Adopt this special rubber can realize printing as scraper 13, further make production equipment and technique simple, thereby reduce production costs.
Step 403, by transfer printing the panel base material 1 of frame pattern dry.Can adopt baking box baking, strong illumination or ultraviolet ray to irradiate dries.Adopt these common technology of drying can realize black out ink fixing on panel base material 1, further simplified production equipment and manufacture craft, thereby production cost is further reduced.
By above step, can be found out, ink for screen printing, carbon slurry or the printing of silver slurry are because it is without too many professional equipment, some circuit board fabrication medium-sized and small enterprises can directly make the transition, cost of products can be declined to a great extent, also it is convenient and joyful that the high-end science and technology that makes vast low and middle-end consumer also can enjoy forward position is brought, for popularizing and improving popular cultural life and opened up a platform.
Compared with prior art, adopt mode of printing to be printed on panel base material 1 black out ink, make the manufacture craft of panel base material 1 easier, cost of manufacture is relatively cheap, more meets actual state and the requirements of mass production of middle and small scale enterprise.
In addition, the typography of transparent insulating layer and transparency conducting layer and the typography of light shield layer are basic identical, at this, are not just setting forth.
Persons of ordinary skill in the art may appreciate that the respective embodiments described above are to realize specific embodiments of the invention, and in actual applications, can to it, do various changes in the form and details, and without departing from the spirit and scope of the present invention.
Claims (16)
1. a touch-screen, comprises panel base material, it is characterized in that: also comprise the light shield layer that covers described panel base material surrounding, described light shield layer forms the frame outside touch screen window,
Described touch-screen also comprises: the transparent insulating layer that described panel base material and described light shield layer are together covered;
Wherein, described transparent insulating layer is transitioned into the surface of described panel base material from the surface smoothing of described light shield layer, eliminates the height fall producing between described light shield layer and described panel base material;
Described touch-screen also comprises: cover the transparency conducting layer on described transparent insulating layer.
2. touch-screen according to claim 1, is characterized in that: the transparency conducting layer that is positioned at described touch screen window region be formed for detecting described touch-screen contact position circuit pattern;
The transparency conducting layer that is positioned at described touch-screen frame region forms the conducting wire being connected with described circuit pattern.
3. touch-screen according to claim 1, is characterized in that: the thickness of described transparent insulating layer is greater than 12nm.
4. touch-screen according to claim 1, is characterized in that: described light shield layer is black out ink or shading Coating Materials.
5. touch-screen according to claim 5, is characterized in that: described black out ink is electrically conductive ink or non-conductive ink.
6. touch-screen according to claim 5, is characterized in that: described shading Coating Materials is plated film non-conducting material or plated film conductive material.
7. touch-screen according to claim 1, is characterized in that: described transparency conducting layer is tin indium oxide ITO conductive layer.
8. touch-screen according to claim 1, is characterized in that: described transparent insulating layer is silicon dioxide insulating layer.
9. according to the touch-screen described in any one in claim 1 to 8, it is characterized in that: described panel base material adopts glass material, polycarbonate material, acrylic board PMMA material or polyethylene terephtalate material to make.
10. a method for making for touch-screen, is characterized in that: comprise following steps:
S1, provide a panel base material;
S2, the frame pattern required according to touch-screen outward appearance, cover light shield layer in the surrounding of described panel base material, makes described light shield layer form the frame outside described touch screen window;
S3, on the panel base material with described light shield layer, cover transparent insulating layer; When covering, described transparent insulating layer is transitioned into the surface of described panel base material from the surface smoothing of described light shield layer, by described transparent insulating layer, eliminate the height fall producing between described light shield layer and described panel base material;
S4, on described transparent insulating layer, cover transparency conducting layer.
The method for making of 11. touch-screens according to claim 10, is characterized in that: after described step S4, also comprise following steps:
S5, on the transparency conducting layer that is positioned at described touch screen window region, make for detection of the circuit pattern of described touch-screen contact position;
S6, the conducting wire that making is connected with described circuit pattern on the transparency conducting layer that is positioned at described touch-screen frame.
The method for making of 12. touch-screens according to claim 10, is characterized in that: in described step S2, described light shield layer is black out ink, by the mode of printing, black out ink is printed on to the surrounding of described panel base material;
Or described light shield layer is shading Coating Materials, by the mode of plated film, the surrounding by shading Coating Materials sputter at described panel base material.
The method for making of 13. touch-screens according to claim 10, is characterized in that: in described step S3, described transparent insulating layer adopts the mode of printing to be printed on the panel base material with described light shield layer;
Or described transparent insulating layer adopts the mode sputter of plated film on the panel base material with described light shield layer.
The method for making of 14. touch-screens according to claim 10, is characterized in that: in described step S4, described transparency conducting layer adopts the mode of plated film, and sputter is on described transparent insulating layer;
Or described transparency conducting layer adopts the mode of printing to be printed on described transparent insulating layer.
The method for making of 15. touch-screens according to claim 11, is characterized in that: in described step S5, described circuit pattern adopts the mode of etching or printing to form on described transparency conducting layer.
The method for making of 16. touch-screens according to claim 12, is characterized in that: in described step S6, described conducting wire adopts the mode of etching or printing to form on described transparency conducting layer.
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| CN201410009031.3A CN103744565A (en) | 2014-01-08 | 2014-01-08 | Touch screen and manufacturing method thereof |
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| CN201410009031.3A CN103744565A (en) | 2014-01-08 | 2014-01-08 | Touch screen and manufacturing method thereof |
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| CN105204671A (en) * | 2014-05-27 | 2015-12-30 | 宸鸿科技(厦门)有限公司 | Touch panel and manufacturing method |
| CN106201040A (en) * | 2015-04-30 | 2016-12-07 | 深圳欧菲光科技股份有限公司 | The manufacture method of touch screen, display device and touch screen |
| WO2018024085A1 (en) * | 2016-08-02 | 2018-02-08 | 京东方科技集团股份有限公司 | Touch panel and display device |
| CN109112485A (en) * | 2018-10-22 | 2019-01-01 | 北京小米移动软件有限公司 | Film plating process, display panel and treadmill |
| CN109696978A (en) * | 2017-10-20 | 2019-04-30 | 南昌欧菲光科技有限公司 | Electronic device, touch screen and touch panel |
| CN110012619A (en) * | 2019-03-06 | 2019-07-12 | 信丰福昌发电子有限公司 | Insulating layer presses processing technology between a kind of plate of multi-layer PCB |
| CN111367426A (en) * | 2019-12-24 | 2020-07-03 | 重庆莱宝科技有限公司 | Touch screen and touch display screen |
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| CN110012619A (en) * | 2019-03-06 | 2019-07-12 | 信丰福昌发电子有限公司 | Insulating layer presses processing technology between a kind of plate of multi-layer PCB |
| CN111367426A (en) * | 2019-12-24 | 2020-07-03 | 重庆莱宝科技有限公司 | Touch screen and touch display screen |
| CN111367426B (en) * | 2019-12-24 | 2023-10-20 | 重庆莱宝科技有限公司 | Touch screen and touch display screen |
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Application publication date: 20140423 |