CN104216585A - Capacitive touch screen adopting single plastic plate structure - Google Patents
Capacitive touch screen adopting single plastic plate structure Download PDFInfo
- Publication number
- CN104216585A CN104216585A CN201410419667.5A CN201410419667A CN104216585A CN 104216585 A CN104216585 A CN 104216585A CN 201410419667 A CN201410419667 A CN 201410419667A CN 104216585 A CN104216585 A CN 104216585A
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- CN
- China
- Prior art keywords
- cover plate
- touch screen
- capacitive touch
- sensor
- plastic sheet
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000004033 plastic Substances 0.000 title abstract description 12
- 239000004020 conductor Substances 0.000 claims abstract description 15
- 238000000034 method Methods 0.000 claims abstract description 14
- 238000005530 etching Methods 0.000 claims abstract description 4
- 239000002985 plastic film Substances 0.000 claims description 21
- 239000000463 material Substances 0.000 claims description 16
- -1 indium tin metal oxide Chemical class 0.000 claims description 5
- 229910044991 metal oxide Inorganic materials 0.000 claims description 5
- AMGQUBHHOARCQH-UHFFFAOYSA-N indium;oxotin Chemical class [In].[Sn]=O AMGQUBHHOARCQH-UHFFFAOYSA-N 0.000 claims description 4
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 3
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 claims description 3
- 230000015572 biosynthetic process Effects 0.000 claims description 3
- 229910021389 graphene Inorganic materials 0.000 claims description 3
- 239000002994 raw material Substances 0.000 abstract description 2
- 230000000694 effects Effects 0.000 abstract 1
- 239000007858 starting material Substances 0.000 description 9
- 239000004568 cement Substances 0.000 description 8
- 239000011521 glass Substances 0.000 description 8
- 238000004519 manufacturing process Methods 0.000 description 7
- 239000002390 adhesive tape Substances 0.000 description 4
- 230000003287 optical effect Effects 0.000 description 2
- ZMHWQAHZKUPENF-UHFFFAOYSA-N 1,2-dichloro-3-(4-chlorophenyl)benzene Chemical compound C1=CC(Cl)=CC=C1C1=CC=CC(Cl)=C1Cl ZMHWQAHZKUPENF-UHFFFAOYSA-N 0.000 description 1
- ZGHQUYZPMWMLBM-UHFFFAOYSA-N 1,2-dichloro-4-phenylbenzene Chemical compound C1=C(Cl)C(Cl)=CC=C1C1=CC=CC=C1 ZGHQUYZPMWMLBM-UHFFFAOYSA-N 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
Landscapes
- Position Input By Displaying (AREA)
- Switches That Are Operated By Magnetic Or Electric Fields (AREA)
Abstract
The invention discloses a capacitive touch screen adopting a single plastic plate structure. The capacitive touch screen comprises a cover plate for protecting a display screen, wherein the cover plate is made of a plastic plate; a conductive sensor for sensing a touch point is arranged on the back side of the cover plate and is a specific graph; the forming process of the conductive sensor comprises the following steps that a transparent conductive material is plated on the back side of the cover plate and then the conductive sensor is manufactured by using yellow laser, etching and other steps, or the conductive sensor is formed by directly printing the transparent conductive material with the specific graph on the back side of the cover plate. The capacitive touch screen further comprises a flexible circuit board which is connected with the conductive sensor and is used for calculating the touch point and reporting the touch point back to a processor. According to the capacitive touch screen adopting the single plastic plate structure, provided by the invention, the cost of raw materials and the processing cost can be reduced under the condition that the touch effect is guaranteed, and the yield is improved; meanwhile, the thickness and the weight of products are reduced, and the crash resistance of products is improved.
Description
Technical field
The present invention relates to capacitive touch screen field, particularly relate to a kind of capacitive touch screen adopting monolithic plastic sheet structure.
Background technology
Touch screen is the composite touch screen on the electronic products such as mobile phone, e-book, digital camera, and wherein capacitance type touch control screen is one the most frequently used in touch screen.
Capacitance type touch control screen utilizes the electric current of human body to respond to carry out work.Capacitance type touch control screen is one piece of four layers of compound glass screen normally, when the finger touch of user is on capacitance type touch control screen, due to human body electric field, user and capacitance touching control screen surfaces are formed with a coupling capacitance (for high-frequency current, electric capacity can be considered as conductor), siphon away a very little electric current so point from the touch point of capacitance touching control screen surfaces, this electric current divides and flows out from the electrode the corner of capacitance type touch control screen.The electric current flowing through these four electrodes is directly proportional to the distance of finger to corner, and controller, by the accurate Calculation to these four current ratios, draws the position of touch point.
Existing capacitance type touch control screen as shown in Figure 1, generally includes following main element: the nano indium tin metal oxide ITO sensor 10 having plated indium tin metal oxide (ITO, Indium Tin Oxides) pattern on glass or PET base material; To the cover plate (Cover Lens) 11 that ITO sensor shields; For bonding the optics double faced adhesive tape 14 of ITO sensor 10 and cover plate (Cover Lens) 11; For calculating touch point and returning to the flexible PCB 12 of processor.
Sensor 10 and cover plate (Cover Lens) 11 bond with optics double faced adhesive tape 14 by existing capacitance type touch control screen, and easily between two kinds, produce bubble, yields is lower, reduces production capacity, adds the cost of raw material, product weight and thickness; Existing capacitance type touch control screen cover plate 11, adopts glass material usually, and not only difficulty of processing is large, and production capacity is low, and cost is high, and fragile.
Summary of the invention
The object of the present invention is to provide a kind of capacitive touch screen adopting monolithic plastic sheet structure, can cut down finished cost, alleviate thickness and the quality of product simultaneously, improve product crash resistance.
In order to realize above object, the invention provides the capacitance plate by monolithic plastic sheet structure, for monolithic cover plate, the material of shown cover plate is plastic sheet, and the reverse side of cover plate is provided with the conductive sensor for sensing touch point, conductive sensor is a special pattern, and its forming process for utilize the technique such as gold-tinted, etching to make after cover plate reverse side plates transparent conductive material, or directly prints the transparent conductive material formation sensor of special pattern at cover plate reverse side.
Further, transparent conductive material includes but not limited to the conductive material such as indium tin metal oxide (ITO, Indium Tin Oxides), Nano Silver, Graphene.
Further, described capacitive touch screen also comprises: be connected with described conductive sensor, for calculating touch point and returning to the flexible PCB of processor.
A kind of capacitive touch screen adopting monolithic plastic sheet structure provided by the invention, has following advantage:
(1) starting material and processing cost reduce; Existing capacitance plate is fitted formed by cover plate, optics double faced adhesive tape, outer sensor.Not only starting material are many, processing procedure complex procedures, and existing capacitance plate cover plate material mostly is glass material, processing difficulties, and cost remains high; Monolithic plastic cement structure capacitive provided by the invention screen is by sensor setting in plastic cement cover plate reverse side, and not only starting material are single but also simplify processing procedure operation, improve production capacity, cut down finished cost; Meanwhile, monolithic plastic sheet structure capacitive screen cover plate (Cover Lens) provided by the invention is plastic material, and handling ease production capacity is high, greatly reduces starting material and processing cost.
(2) overall product thickness and weight reduce; Existing capacitance plate product structure is: Cover Lens+ optical cement+sensor; Monolithic plastic sheet structure capacitive screen products structure provided by the invention is only: Cover Lens, has superiority undoubtedly on thickness and weight.
(3) product crash resistance is improved.It is fragile that existing capacitance plate cover plate mostly is glass material; Monolithic plastic sheet structure capacitive screen cover plate provided by the invention is that plastic cement material solves the frangible problem of product.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the structural representation of existing capacitive touch screen;
Fig. 2 is the structural representation of the capacitive touch screen of monolithic plastic sheet structure provided by the invention;
Embodiment
A kind of capacitive touch screen adopting monolithic plastic sheet structure provided by the invention, can reduce starting material, simplifies processing procedure operation, improves production capacity, cut down finished cost, alleviate thickness and the weight of product simultaneously, improve product crash resistance.
Below in conjunction with the accompanying drawing in the present invention, be clearly and completely described the technical scheme in the present invention, obviously, described is only the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, the every other embodiment that those of ordinary skill in the art obtain under the prerequisite of not making creative work, all belongs to the scope of protection of the invention.
See the capacitive touch screen of Fig. 2, monolithic plastic sheet structure, comprise: for the protection of the cover plate 21 of shown display screen, the material of shown cover plate 21 is plastic sheet, instead of existing general glass material, solve Product processing difficulty, the difficult problem that cost is high, and improve product crash resistance; And the reverse side of cover plate is provided with the conductive sensor 23 for sensing touch point, conductive sensor 23 is a special pattern, its forming process for utilize the technique such as gold-tinted, etching to make after cover plate reverse side plates transparent conductive material, or directly prints the transparent conductive material formation sensor of special pattern at cover plate reverse side.Described transparent conductive material includes but not limited to the conductive material such as indium tin metal oxide (ITO, Indium Tin Oxides), Nano Silver, Graphene; Described capacitive touch screen also comprises: be connected with described conductive sensor, for calculating touch point and returning to the flexible PCB 22 of processor.
Known by describing above, a kind of capacitive touch screen adopting monolithic plastic sheet structure provided by the invention, has following advantage:
(1) starting material and processing cost reduce; Existing capacitance plate is fitted formed by cover plate, optics double faced adhesive tape, outer sensor.Not only starting material are many, processing procedure complex procedures, and existing capacitance plate cover plate material mostly is glass material, processing difficulties, and cost remains high; Monolithic plastic cement structure capacitive provided by the invention screen is by sensor setting in plastic cement cover plate reverse side, and not only starting material are single but also simplify processing procedure operation, improve production capacity, cut down finished cost; Meanwhile, monolithic plastic sheet structure capacitive screen cover plate (Cover Lens) provided by the invention is plastic material, and handling ease production capacity is high, greatly reduces starting material and processing cost.
(2) overall product thickness and weight reduce; Existing capacitance plate product structure is: cover plate (Cover Lens)+optical cement+sensor; Monolithic plastic sheet structure capacitive screen products structure provided by the invention is only cover plate (Cover Lens), all has superiority undoubtedly on thickness and weight.
(3) product crash resistance is improved.It is fragile that existing capacitance plate cover plate mostly is glass material; Monolithic plastic sheet structure capacitive screen cover plate provided by the invention is that plastic cement material solves the frangible problem of product.
Above content is in conjunction with concrete preferred implementation further description made for the present invention, can not assert that specific embodiment of the invention is confined to these explanations.For general technical staff of the technical field of the invention, without departing from the inventive concept of the premise, some simple deduction or replace can also be made, all should be considered as belonging to protection scope of the present invention.
Claims (3)
1. one kind adopts the capacitive touch screen of monolithic plastic sheet structure; comprise: for the protection of the cover plate of shown display screen; it is characterized in that; the material of shown cover plate is plastic sheet; and the reverse side of cover plate is provided with the conductive sensor for sensing touch point; conductive sensor is a special pattern, and its forming process for utilize the technique such as gold-tinted, etching to make after cover plate reverse side plates transparent conductive material, or directly prints the transparent conductive material formation sensor of special pattern at cover plate reverse side.
2. a kind of capacitive touch screen adopting monolithic plastic sheet structure according to claim 1, it is characterized in that, transparent conductive material includes but not limited to the conductive material such as indium tin metal oxide (ITO, Indium Tin Oxides), Nano Silver, Graphene.
3. a kind of capacitive touch screen adopting monolithic plastic sheet structure according to claim 1, it is characterized in that, described capacitive touch screen also comprises: be connected with described conductive sensor, for calculating touch point and returning to the flexible PCB of processor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410419667.5A CN104216585A (en) | 2014-08-22 | 2014-08-22 | Capacitive touch screen adopting single plastic plate structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410419667.5A CN104216585A (en) | 2014-08-22 | 2014-08-22 | Capacitive touch screen adopting single plastic plate structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104216585A true CN104216585A (en) | 2014-12-17 |
Family
ID=52098148
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410419667.5A Pending CN104216585A (en) | 2014-08-22 | 2014-08-22 | Capacitive touch screen adopting single plastic plate structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104216585A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011095903A (en) * | 2009-10-28 | 2011-05-12 | Applied Vacuum Coating Technologies Co Ltd | Touch pad structure |
| CN203250299U (en) * | 2013-04-09 | 2013-10-23 | 无锡力合光电石墨烯应用研发中心有限公司 | Graphene capacitive touch screen |
| CN103713791A (en) * | 2013-12-11 | 2014-04-09 | 深圳市奥科立盛科技有限公司 | Capacitive-type touch module with single plastic sheet, production method for same, and OPS touch screen |
| CN204613919U (en) * | 2014-08-22 | 2015-09-02 | 格林精密部件（惠州）有限公司 | A kind of capacitive touch screen adopting monolithic plastic sheet structure |
-
2014
- 2014-08-22 CN CN201410419667.5A patent/CN104216585A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011095903A (en) * | 2009-10-28 | 2011-05-12 | Applied Vacuum Coating Technologies Co Ltd | Touch pad structure |
| CN203250299U (en) * | 2013-04-09 | 2013-10-23 | 无锡力合光电石墨烯应用研发中心有限公司 | Graphene capacitive touch screen |
| CN103713791A (en) * | 2013-12-11 | 2014-04-09 | 深圳市奥科立盛科技有限公司 | Capacitive-type touch module with single plastic sheet, production method for same, and OPS touch screen |
| CN204613919U (en) * | 2014-08-22 | 2015-09-02 | 格林精密部件（惠州）有限公司 | A kind of capacitive touch screen adopting monolithic plastic sheet structure |
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| C06 | Publication | ||
| PB01 | Publication | ||
| CB02 | Change of applicant information |
Address after: 516025 Huizhou City, Guangdong Province, the three digital Industrial Park Applicant after: GUANGDONG GREEN PRECISION COMPONENTS Co.,Ltd. Address before: Three Huicheng Guangdong District, Huizhou City, the number of Digital Industrial Park Applicant before: GREEN PRECISION COMPONENTS (HUIZHOU) Co.,Ltd. |
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| COR | Change of bibliographic data | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20141217 |