CN103777836A - Capacitive touch screen and manufacturing method thereof - Google Patents
Capacitive touch screen and manufacturing method thereof Download PDFInfo
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- CN103777836A CN103777836A CN201410060440.6A CN201410060440A CN103777836A CN 103777836 A CN103777836 A CN 103777836A CN 201410060440 A CN201410060440 A CN 201410060440A CN 103777836 A CN103777836 A CN 103777836A
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Abstract
The invention discloses a capacitive touch screen and a manufacturing method thereof. In the manufacturing process of the capacitive touch screen, electrode leads which are connected with a first electrode array and a second electrode array are transparent, so that edge areas of the capacitive touch screen are pervious to light, and a shading area of the whole capacitive touch screen is absent. Compared with existing capacitive touch screens, the capacitive touch screen has the advantages that the light transmitting area is large, the manufacturing process is simple, and the costs are low.
Description
Technical field
The present invention relates to capacitive touch screen technical field, more particularly, relate to a kind of capacitive touch screen and preparation method thereof.
Background technology
Capacitive touch screen has been widely used in colored and black TFT(Thin Film Transistor, Thin Film Transistor (TFT)) display screen, it has the advantage such as high reliability, high durability, and wherein, the research of individual layer ITO capacitive touch screen has possessed certain positive effect.
The circuit structure of capacitive touch screen adopts bridging structure conventionally at present, is at overlapping region mutually insulated.The method for making of the capacitive touch screen of existing bridging structure mainly comprises step: a, on substrate, is formed on multiple connecting lines of the arrayed of first direction; B, on connecting line, form insulation course; C, be formed on the first electrod-array of first direction simultaneously, and the second electrod-array of adjacent two second electrode mutual conduction of second direction, and in the first electrod-array, adjacent two the first electrodes are by connecting line conducting, and wherein, first direction is mutually vertical with second direction; Multiple contact conductors that d, formation and the first electrod-array and the second electrod-array are electrically connected.
Existing capacitive touch screen is not only loaded down with trivial details in manufacturing process, and because contact conductor is nontransparent metal wire, has therefore reduced the glazed area of capacitive touch screen.
Summary of the invention
In view of this, the invention provides a kind of capacitive touch screen and preparation method thereof, manufacture craft is simple, and the capacitive touch screen fringe region of printing opacity nothing but, has increased its glazed area large.
For achieving the above object, the invention provides following technical scheme:
A method for making for capacitive touch screen, comprising:
On substrate, form electrically conducting transparent and at the first electrod-array of first direction, at the second electrod-array of second direction and the multiple contact conductors that are connected with the second electrod-array with described the first electrod-array respectively simultaneously, wherein, in described second direction, adjacent two the second electrodes are communicated with, and on described first direction, adjacent two the first electrodes cut off mutually;
Be communicated with end at adjacent two described the second electrodes and form insulation course;
On described insulation course, form the connecting line of multiple electrically conducting transparents, described connecting line connects adjacent two the first electrodes.
Preferably, the material of described the first electrod-array, the second electrod-array, contact conductor and connecting line is tin indium oxide or indium zinc oxide.
Preferably, described first direction is mutually vertical with second direction.
A method for making for capacitive touch screen, comprising:
On substrate, form the connecting line of multiple electrically conducting transparents;
On described connecting line, form insulation course;
Form electrically conducting transparent and at the first electrod-array of first direction, at the second electrod-array of second direction and the multiple contact conductors that are connected with the second electrod-array with described the first electrod-array respectively simultaneously, wherein, in described second direction, adjacent two the second electrodes are communicated with, and on described first direction, adjacent two described the first electrodes are communicated with by described connecting line.
Preferably, the material of described the first electrod-array, the second electrod-array, contact conductor and connecting line is tin indium oxide or indium zinc oxide.
Preferably, described first direction is mutually vertical with second direction.
A method for making for capacitive touch screen, comprising:
On substrate, form multiple connecting lines and multiple contact conductor of electrically conducting transparent simultaneously;
On described connecting line, form insulation course;
Form electrically conducting transparent and at the first electrod-array of first direction with at the second electrod-array of second direction simultaneously, wherein, in described second direction, adjacent two the second electrodes are communicated with, on described first direction, adjacent two described the first electrodes are communicated with by described connecting line, and described multiple contact conductor is connected with the second electrod-array with described the first electrod-array respectively.
Preferably, the material of described the first electrod-array, the second electrod-array, contact conductor and connecting line is tin indium oxide or indium zinc oxide.
Preferably, described first direction is mutually vertical with second direction.
A method for making for capacitive touch screen, comprising:
On substrate, form electrically conducting transparent and at the first electrod-array of first direction, at the second electrod-array of second direction simultaneously, wherein, in described second direction, adjacent two the second electrodes are communicated with, and on described first direction, adjacent two the first electrodes cut off mutually;
Be communicated with end at adjacent two described the second electrodes and form insulation course;
On described insulation course, form the connecting line of multiple electrically conducting transparents, described connecting line connects adjacent two the first electrodes, and forms the multiple contact conductors that are connected with the second electrod-array with described the first electrod-array respectively simultaneously.
Preferably, the material of described the first electrod-array, the second electrod-array, contact conductor and connecting line is tin indium oxide or indium zinc oxide.
Preferably, described first direction is mutually vertical with second direction.
A kind of capacitive touch screen, described capacitive touch screen adopts the method for making of the capacitive touch screen described in above-mentioned any to be made.
Compared with prior art, technical scheme provided by the present invention has the following advantages:
Capacitive touch screen provided by the present invention and preparation method thereof, by in the manufacturing process of capacitive touch screen, the contact conductor being connected with the second electrod-array with the first electrod-array is made as to transparent contact conductor, make the fringe region printing opacity of capacitive touch screen, make whole capacitive touch screen without lightproof area.With respect to existing capacitive touch screen, the glazed area of capacitive touch screen provided by the invention is large, and manufacture craft is simple, and cost is low.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, to the accompanying drawing of required use in embodiment or description of the Prior Art be briefly described below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skills, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.
The method for making process flow diagram of a kind of capacitive touch screen that Fig. 1 provides for the embodiment of the present application one;
The structural representation that Fig. 2 a～2c is respectively with in Fig. 1, step S11～S13 is corresponding;
The method for making process flow diagram of a kind of capacitive touch screen that Fig. 3 provides for the embodiment of the present application two;
The structural representation that Fig. 4 a～4c is respectively with in Fig. 3, step S21～S23 is corresponding;
The method for making process flow diagram of a kind of capacitive touch screen that Fig. 5 provides for the embodiment of the present application three;
The structural representation that Fig. 6 a～6c is respectively with in Fig. 5, step S31～S33 is corresponding;
The method for making process flow diagram of a kind of capacitive touch screen that Fig. 7 provides for the embodiment of the present application four;
The structural representation that Fig. 8 a～8c is respectively with in Fig. 7, step S41～S43 is corresponding.
Embodiment
For object of the present invention, feature and advantage can be become apparent more, below in conjunction with accompanying drawing, the specific embodiment of the present invention is described in detail.
A lot of details are set forth in the following description so that fully understand the present invention, but the present invention can also adopt other to be different from alternate manner described here and implement, those skilled in the art can do similar popularization without prejudice to intension of the present invention in the situation that, and therefore the present invention is not subject to the restriction of following public specific embodiment.
Secondly, the present invention is described in detail in conjunction with schematic diagram, in the time that the embodiment of the present invention is described in detail in detail; for ease of explanation; represent that the sectional view of device architecture can disobey general ratio and do local amplification, and described schematic diagram is example, it should not limit the scope of protection of the invention at this.In addition in actual fabrication, should comprise, the three-dimensional space of length, width and the degree of depth.
As described in background, existing capacitive touch screen is not only loaded down with trivial details in manufacturing process, and because contact conductor is nontransparent metal wire, has therefore reduced the glazed area of capacitive touch screen.
Embodiment mono-
Based on this, present application example one provides a kind of method for making of capacitive touch screen, shown in Fig. 1 and 2 a～2c, the method for making process flow diagram of a kind of capacitive touch screen that Fig. 1 provides for the embodiment of the present application one, the structural representation that Fig. 2 a～2c is respectively with in Fig. 1, step S11～S13 is corresponding.
Method for making comprises:
S11, on substrate, form electrically conducting transparent and at the first electrod-array of first direction, at the second electrod-array of second direction and the multiple contact conductors that are connected with the second electrod-array with described the first electrod-array respectively simultaneously, wherein, in described second direction, adjacent two the second electrodes are communicated with, and on described first direction, adjacent two the first electrodes cut off mutually.
Shown in figure 1a, first on transparent substrate, make touch electrode pattern (the second electrod-array that the first electrod-array that multiple the first electrodes 1 in the horizontal direction form and multiple the second electrodes 2 of in the vertical direction form), and the contact conductor 3 being connected with every row the second electrod-array in every row the first electrode in the first electrod-array and the second electrod-array.Wherein, adjacent two the second electrodes 2 of in the vertical direction are communicated with, and, in the time making touch electrode pattern, adjacent two the second electrodes 2 are made as connection.
Optionally adopt for making touch electrode pattern and contact conductor the photoetching technique that semiconductor technology is conventional.Preferably, the first electrode and the second electrode can circles, rhombus, the shape such as square, and the embodiment of the present application is not done concrete restriction for it.
It should be noted that, for first direction and second direction are set to respectively to horizontal direction and vertical direction, just describe for a kind of concrete condition of the embodiment of the present application for convenient.First direction and second direction can be any direction in theory, but consider production application, and the preferred first direction of the embodiment of the present application and second direction are orthogonal relation.
S12, adjacent two described second electrodes be communicated with end form insulation courses.
Shown in figure 2b, on the link of adjacent two the second electrodes 2, form insulation course 4, to prevent (forming connecting line on the link of adjacent two the second electrodes) in follow-up bridging technique, the first electrode 1 is connected with the second electrode by the connecting line of follow-up making, and occurs the phenomenon that touch electrode pattern lost efficacy.
S13, on described insulation course, form the connecting line of multiple electrically conducting transparents, described connecting line connects adjacent two the first electrodes.
Shown in figure 2a and/or 2b, owing to being what cut off between two adjacent the first electrodes 1, therefore need between adjacent two the first electrodes 1, to be communicated with and just can to make touch electrode pattern play a role.Shown in figure 2c, by form connecting line 5 on insulation course 4, connecting line 5 is communicated with adjacent two the first electrodes 1.
In the embodiment of the present application, the material of optional described the first electrod-array, the second electrod-array, contact conductor and connecting line is tin indium oxide or indium zinc oxide.The contact conductor that is positioned at substrate edge region is made as to the contact conductor of electrically conducting transparent, and makes the fringe region printing opacity of capacitive touch screen, increased the glazed area of capacitive touch screen.
Embodiment bis-
The embodiment of the present application is a kind of method for making of capacitive touch screen also, and the method for making of capacitive touch screen the embodiment of the present application being provided in conjunction with Fig. 3 and 4a～4c is specifically described.Wherein, the method for making process flow diagram of a kind of capacitive touch screen that Fig. 3 provides for the embodiment of the present application two, the structural representation that Fig. 4 a～4c is respectively with in Fig. 3, step S21～S23 is corresponding.
Method for making comprises:
S21, on substrate, form the connecting line of multiple electrically conducting transparents.
Shown in figure 4a, first on substrate, make multiple connecting lines 5, wherein, in the embodiment of the present application, multiple connecting lines 5 are arrayed, but in production application, need to carry out specific design according to actual conditions, therefore not get rid of for multiple connecting lines and adopt other arrangement mode.
S22, on described connecting line, form insulation course.
Shown in figure 4b, on connecting line 5, form insulation course 4, in the process of follow-up making capacitive touch screen, need to make the first electrod-array and the second electrod-array, wherein, the second electrod-array need to adopt connecting line 5 that adjacent two second electrodes of the second electrod-array are communicated with, and has overlapping and be communicated with end between adjacent two first electrodes of the first electrod-array with this connecting line, in order to prevent that this overlapping region from misleading, therefore need on connecting line 5, form insulation course 4.
S23, form electrically conducting transparent and at the first electrod-array of first direction, at the second electrod-array of second direction and the multiple contact conductors that are connected with the second electrod-array with described the first electrod-array respectively simultaneously, wherein, in described second direction, adjacent two the second electrodes are communicated with, and on described first direction, adjacent two described the first electrodes are communicated with by described connecting line.
Shown in figure 4c, form the first electrod-array in the horizontal direction simultaneously, the second electrod-array of in the vertical direction, and the multiple contact conductors 3 that are connected with every row the second electrode 2 in every row the first electrode 1 in the first electrod-array and the second electrod-array respectively.
Making for the first electrod-array, the second electrod-array and contact conductor can adopt conventional photoetching process, produce the first electrod-array, the second electrod-array and contact conductor by nesa coating by photoetching process simultaneously, not only without increasing too much making flow process, and be compared to existing method for making, the method for making that the application provides is simpler, and cost is low.
The embodiment of the present application two is identical with embodiment mono-, for first direction and second direction are set to respectively to horizontal direction and vertical direction, just describes for a kind of concrete condition of the embodiment of the present application for convenient.First direction and second direction can be any direction in theory, but consider production application, and the preferred first direction of the embodiment of the present application and second direction are orthogonal relation.
The embodiment of the present application is optional, and the material of described the first electrod-array, the second electrod-array, contact conductor and connecting line is tin indium oxide or indium zinc oxide.On substrate, all structures are set to transparent configuration (insulation course is transparent insulating layer), can form the capacitive touch screen without lightproof area, increase the glazed area of capacitive touch screen.
It should be noted that, in above-described embodiment one and embodiment bis-, all contact conductor, the first electrod-array and the second electrod-array are formed simultaneously, be made by photoetching process by same nesa coating, but because the first electrod-array and the second electrod-array all need the high grade of transparency, therefore need this nesa coating to do thin, thereby the resistance of contact conductor is increased, the transmission of signal is produced to certain influence, still in actual conditions, can choose as required the method for making that embodiment mono-and embodiment bis-provide.
Optionally, for connecting line and the contact conductor of electrically conducting transparent, both thickness is larger, the resistance of itself is less, for the little contact conductor of resistance, more easily transmit and occur in the signal intensity occurring between the first electrod-array and the second electrod-array, therefore the application also provides other two kinds of method for makings of making capacitive touch screen, has guaranteed that the resistance of contact conductor is little.
Embodiment tri-
The embodiment of the present application also provides a kind of method for making of capacitive touch screen, the method for making providing with respect to embodiment bis-, making for multiple contact conductors can form with connecting line simultaneously, and both thickness can carry out specific design according to actual conditions, so that the resistance that design needs.
Concrete, shown in Fig. 5 and 6a～6c, the method for making that the embodiment of the present application is provided is described in detail.Wherein, the method for making process flow diagram of a kind of capacitive touch screen that Fig. 5 provides for the embodiment of the present application three, the structural representation that Fig. 6 a～6c is respectively with in Fig. 5, step S31～S33 is corresponding.
Method for making comprises:
S31, the multiple connecting lines that simultaneously form electrically conducting transparent on substrate and multiple contact conductor.
Shown in figure 6a, first on substrate, form multiple connecting lines 5 and multiple contact conductor 3.In the embodiment of the present application three, form connecting line and contact conductor first simultaneously, and only need make the first electrod-array and the second electrod-array in subsequent handling simultaneously, therefore for connecting line and contact conductor, any thickness can be set, to design the resistance of contact conductor.
S32, on described connecting line, form insulation course.
Shown in figure 6b, on connecting line 5, form insulation course 4, between follow-up the first electrod-array and the second electrod-array, mislead preventing.
S33, form electrically conducting transparent and at the first electrod-array of first direction with at the second electrod-array of second direction simultaneously, wherein, in described second direction, adjacent two the second electrodes are communicated with, on described first direction, adjacent two described the first electrodes are communicated with by described connecting line, and described multiple contact conductor is connected with the second electrod-array with described the first electrod-array respectively.
Shown in figure 6c, on the basis of Fig. 6 b, form the first electrod-array and the second electrod-array simultaneously, and adjacent two the first electrodes 1 in the first electrod-array of horizontal direction are connected by connecting line 5, and every row the first electrode 1 is connected with a contact conductor 3; Every row the second electrode 2 in the second electrod-array of vertical direction is connected with a contact conductor 3.
Identical with embodiment bis-with embodiment mono-, for first direction and second direction are set to respectively to horizontal direction and vertical direction, just describe for a kind of concrete condition of the embodiment of the present application for convenient.First direction and second direction can be any direction in theory, but consider production application, and the preferred first direction of the embodiment of the present application and second direction are orthogonal relation.
The embodiment of the present application is optional, and the material of described the first electrod-array, the second electrod-array, contact conductor and connecting line is tin indium oxide or indium zinc oxide.On substrate, all structures are set to transparent configuration (insulation course is transparent insulating layer), can form the capacitive touch screen without lightproof area, increase the glazed area of capacitive touch screen.
Embodiment tetra-
With respect to embodiment tri-, the method for making of a kind of capacitive touch screen that the embodiment of the present application four also provides, same, the making of its multiple contact conductors can form with connecting line simultaneously, and both thickness can carry out specific design according to actual conditions, so that the resistance that design needs.
Concrete, shown in Fig. 7 and 8a～8c, the method for making that the embodiment of the present application is provided is described in detail.Wherein, the method for making process flow diagram of a kind of capacitive touch screen that Fig. 7 provides for the embodiment of the present application four, the structural representation that Fig. 8 a～8c is respectively with in Fig. 7, step S41～S43 is corresponding.
Method for making comprises:
S41, on substrate, form electrically conducting transparent and at the first electrod-array of first direction, at the second electrod-array of second direction simultaneously, wherein, in described second direction, adjacent two the second electrodes are communicated with, and on described first direction, adjacent two the first electrodes cut off mutually.
Shown in figure 8a, first on transparent substrate, make touch electrode pattern (the second electrod-array that the first electrod-array that multiple the first electrodes 1 in the horizontal direction form and multiple the second electrodes 2 of in the vertical direction form), wherein, adjacent two the second electrodes 2 of in the vertical direction are communicated with, in the time making touch electrode pattern, adjacent two the second electrodes 2 are made as connection.
Optionally adopt for making touch electrode pattern and contact conductor the photoetching technique that semiconductor technology is conventional.Preferably, the first electrode and the second electrode can circles, rhombus, the shape such as square, and the embodiment of the present application is not done concrete restriction for it.
It should be noted that, for first direction and second direction are set to respectively to horizontal direction and vertical direction, just describe for a kind of concrete condition of the embodiment of the present application for convenient.First direction and second direction can be any direction in theory, but consider production application, and the preferred first direction of the embodiment of the present application and second direction are orthogonal relation.
S42, adjacent two described second electrodes be communicated with end form insulation courses.
Shown in figure 8b, on the link of adjacent two the second electrodes 2, form insulation course 4, to prevent (forming connecting line on the link of adjacent two the second electrodes) in follow-up bridging technique, the first electrode 1 is connected with the second electrode by the connecting line of follow-up making, and occurs the phenomenon that touch electrode pattern lost efficacy.
S43, on described insulation course, form the connecting line of multiple electrically conducting transparents, described connecting line connects adjacent two the first electrodes, and forms the multiple contact conductors that are connected with the second electrod-array with described the first electrod-array respectively simultaneously.
Shown in figure 8c, finally form connecting line 5 and contact conductor 3, both are made by photoetching process by layer of transparent conducting film simultaneously, consider that the resistance of contact conductor is on the impact of signal transmission, therefore the thickness of nesa coating can be increased, and then reduce the resistance of contact conductor.
In the embodiment of the present application, the material of optional described the first electrod-array, the second electrod-array, contact conductor and connecting line is tin indium oxide or indium zinc oxide.The contact conductor that is positioned at substrate edge region is made as to the contact conductor of electrically conducting transparent, and makes the fringe region printing opacity of capacitive touch screen, increased the glazed area of capacitive touch screen.
In addition to the implementation, the embodiment of the present application also provides a kind of capacitive touch screen, and described capacitive touch screen adopts the method for making of the capacitive touch screen described in any embodiment of above-mentioned all embodiment to be made.
To the above-mentioned explanation of the disclosed embodiments, make professional and technical personnel in the field can realize or use the present invention.To be apparent for those skilled in the art to the multiple modification of these embodiment, General Principle as defined herein can, in the situation that not departing from the spirit or scope of the present invention, realize in other embodiments.Therefore, the present invention will can not be restricted to these embodiment shown in this article, but will meet the widest scope consistent with principle disclosed herein and features of novelty.
Claims (13)
1. a method for making for capacitive touch screen, is characterized in that, comprising:
On substrate, form electrically conducting transparent and at the first electrod-array of first direction, at the second electrod-array of second direction and the multiple contact conductors that are connected with the second electrod-array with described the first electrod-array respectively simultaneously, wherein, in described second direction, adjacent two the second electrodes are communicated with, and on described first direction, adjacent two the first electrodes cut off mutually;
Be communicated with end at adjacent two described the second electrodes and form insulation course;
On described insulation course, form the connecting line of multiple electrically conducting transparents, described connecting line connects adjacent two the first electrodes.
2. the method for making of capacitive touch screen according to claim 1, is characterized in that, the material of described the first electrod-array, the second electrod-array, contact conductor and connecting line is tin indium oxide or indium zinc oxide.
3. the method for making of capacitive touch screen according to claim 1, is characterized in that, described first direction is mutually vertical with second direction.
4. a method for making for capacitive touch screen, is characterized in that, comprising:
On substrate, form the connecting line of multiple electrically conducting transparents;
On described connecting line, form insulation course;
Form electrically conducting transparent and at the first electrod-array of first direction, at the second electrod-array of second direction and the multiple contact conductors that are connected with the second electrod-array with described the first electrod-array respectively simultaneously, wherein, in described second direction, adjacent two the second electrodes are communicated with, and on described first direction, adjacent two described the first electrodes are communicated with by described connecting line.
5. the method for making of capacitive touch screen according to claim 4, is characterized in that, the material of described the first electrod-array, the second electrod-array, contact conductor and connecting line is tin indium oxide or indium zinc oxide.
6. the method for making of capacitive touch screen according to claim 4, is characterized in that, described first direction is mutually vertical with second direction.
7. a method for making for capacitive touch screen, is characterized in that, comprising:
On substrate, form multiple connecting lines and multiple contact conductor of electrically conducting transparent simultaneously;
On described connecting line, form insulation course;
Form electrically conducting transparent and at the first electrod-array of first direction with at the second electrod-array of second direction simultaneously, wherein, in described second direction, adjacent two the second electrodes are communicated with, on described first direction, adjacent two described the first electrodes are communicated with by described connecting line, and described multiple contact conductor is connected with the second electrod-array with described the first electrod-array respectively.
8. the method for making of capacitive touch screen according to claim 7, is characterized in that, the material of described the first electrod-array, the second electrod-array, contact conductor and connecting line is tin indium oxide or indium zinc oxide.
9. the method for making of capacitive touch screen according to claim 7, is characterized in that, described first direction is mutually vertical with second direction.
10. a method for making for capacitive touch screen, is characterized in that, comprising:
On substrate, form electrically conducting transparent and at the first electrod-array of first direction, at the second electrod-array of second direction simultaneously, wherein, in described second direction, adjacent two the second electrodes are communicated with, and on described first direction, adjacent two the first electrodes cut off mutually;
Be communicated with end at adjacent two described the second electrodes and form insulation course;
On described insulation course, form the connecting line of multiple electrically conducting transparents, described connecting line connects adjacent two the first electrodes, and forms the multiple contact conductors that are connected with the second electrod-array with described the first electrod-array respectively simultaneously.
The method for making of 11. capacitive touch screens according to claim 10, is characterized in that, the material of described the first electrod-array, the second electrod-array, contact conductor and connecting line is tin indium oxide or indium zinc oxide.
The method for making of 12. capacitive touch screens according to claim 10, is characterized in that, described first direction is mutually vertical with second direction.
13. 1 kinds of capacitive touch screens, is characterized in that, described capacitive touch screen adopts the method for making of the capacitive touch screen described in claim 1～12 any one to be made.
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| CN201410060440.6A CN103777836A (en) | 2014-02-21 | 2014-02-21 | Capacitive touch screen and manufacturing method thereof |
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| CN201410060440.6A CN103777836A (en) | 2014-02-21 | 2014-02-21 | Capacitive touch screen and manufacturing method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105528122A (en) * | 2014-09-29 | 2016-04-27 | 宸鸿科技(厦门)有限公司 | Touch control panel and method for manufacturing same |
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| CN103135863A (en) * | 2011-11-23 | 2013-06-05 | 比亚迪股份有限公司 | Capacitive touch screen and manufacture method of capacitive touch screen |
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Application publication date: 20140507 |