CN105892777B - A kind of capacitance touch screen - Google Patents
A kind of capacitance touch screen Download PDFInfo
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- CN105892777B CN105892777B CN201610195095.6A CN201610195095A CN105892777B CN 105892777 B CN105892777 B CN 105892777B CN 201610195095 A CN201610195095 A CN 201610195095A CN 105892777 B CN105892777 B CN 105892777B
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- electrically
- backing plate
- conductive backing
- control
- touch screen
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
- G06F3/044—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Human Computer Interaction (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Position Input By Displaying (AREA)
Abstract
The present invention discloses a kind of capacitance touch screen, it includes electrically-conductive backing plate and the induction channels that the electrically-conductive backing plate surface is arranged in, the induction channels are a plurality of, arranged for interval is on the electrically-conductive backing plate surface, the electrically-conductive backing plate edge is provided with multiple control IC, multiple control IC pass through signal transmssion line respectively and connect with the electrically-conductive backing plate, and multiple control IC pass through connecting line between each other and are connected to a signal output interface.The multiple control IC of the present invention are placed directly onto the edge placement of electrically-conductive backing plate, and multiple control IC are connected between each other, electrically-conductive backing plate by signal transmssion line and control IC during being electrically connected in this way, the electric connection for only needing to can be realized control IC and electrically-conductive backing plate by shorter, less signal transmssion line, saves the space around electrically-conductive backing plate.
Description
Technical field
The present invention relates to electronic technology field, especially a kind of capacitance touch screen.
Background technique
Touch screen be it is a kind of simply, conveniently, natural human-computer interaction device, be widely used in various places.Touching
It is many kinds of to touch screen, dividing by principle mainly includes resistance-type, condenser type, infrared type and surface acoustic wave type.Wherein capacitive touch
Touching screen is to utilize induction electricity caused by capacitance variations caused by the electrostatical binding between the electrode and human body on glass substrate
Stream carrys out coordinate of the detector by touch location.Principle of induction acts on four corners of screen induction zone with voltage and forms one
Stationary electric field can make electric field cause electric current, measure by controller, according to four corner ratios of electric current when finger touches screen
Difference can calculate contact position.
Touch screen complex process currently produced on the market, wherein setting control IC (Integrated Circuit,
Integrated circuit) there are two types of modes in the process, specific as follows:
First, being as shown in Figure 1 a kind of existing structural schematic diagram of capacitance touch screen comprising have electrically-conductive backing plate 110, set
It sets a plurality of induction channels 120 on 110 surface of electrically-conductive backing plate, be connected to 110 one end of electrically-conductive backing plate by signal transmssion line 130
FPC flexible circuit board 140, the control panel 150 that connect with FPC flexible circuit board 140 and be set to 110 top of electrically-conductive backing plate
Protection glass 160.Wherein, control panel 150 includes IC151 and signal output interface 152.From figure 1 it will be seen that the letter
Number transmission line 130 be it is a plurality of, it is uniformly distributed, dense to be arranged in around the edge of electrically-conductive backing plate 110, so that capacitance touch screen just needs
Biggish space is set around electrically-conductive backing plate to be routed, not only occupied space is big in this way, but also signal transmssion line connection procedure
In connecting portion it is more, be easy to cause bad connection.In addition, being needed relatively strong when connector of the user to each wiring carries out grafting
Professional knowledge can operate, otherwise, due to excessive wiring and connector, be easy to cause user's wrong plug.
Second, being illustrated in figure 2 the structural schematic diagram of existing another capacitance touch screen comprising have electrically-conductive backing plate 210,
The a plurality of induction channels 220 that are arranged on 210 surface of electrically-conductive backing plate are connected to electrically-conductive backing plate 210 1 by signal transmssion line 230
The PCB (Printed Circuit Board, printed circuit board) 240 at end and the protection for being set to 210 top of electrically-conductive backing plate
Glass 250.Wherein, PCB includes IC241 and signal output interface 242.It can be observed from fig. 2 that the signal transmssion line 230 is
It is a plurality of, it is uniformly distributed, dense to be arranged in around the edge of electrically-conductive backing plate 210, so that capacitance touch screen just needed in electrically-conductive backing plate week
The biggish space of setting is enclosed to be routed, and not only occupied space is big in this way, but also the connecting portion in signal transmssion line connection procedure
It is more, it be easy to cause bad connection.In addition, needing stronger professional knowledge just when connector of the user to each wiring carries out grafting
It can operate, otherwise, due to excessive wiring and connector, be easy to cause user's wrong plug.
From Fig. 1 and Fig. 2 it is found that existing capacitance touch screen needs to arrange during the electric connection of electrically-conductive backing plate and IC
A plurality of signal transmssion line occupies the space of a large amount of capacitance touch screen in wiring process, and is connected by a plurality of signal output line
Multiple connecting portions are connected to, to be easy to cause poor contact, and due to excessive wiring and connector, user are easy to cause to insert
It is wrong.
Summary of the invention
The present invention is intended to provide it is a kind of wiring less, wiring occupy little space, contact well and convenient for mating electricity
Hold touch screen.
To achieve the above object, the invention provides the following technical scheme:
The present invention discloses a kind of capacitance touch screen comprising electrically-conductive backing plate and the induction that the electrically-conductive backing plate surface is arranged in
Channel, the induction channels be it is a plurality of, on the electrically-conductive backing plate surface, the electrically-conductive backing plate edge is provided with more arranged for interval
A control IC, multiple control IC pass through signal transmssion line respectively and connect with the electrically-conductive backing plate, multiple control IC phases
A signal output interface is connected to by connecting line between mutually.
As further scheme of the invention: the electrically-conductive backing plate edge is additionally provided with a master control IC, and the master control IC is set
It is placed at the signal output interface (350) position, multiple control IC are connected to the master control IC.One master control IC is set,
And multiple control IC are connected at master control IC, master control IC is analyzed and processed the data-signal etc. of multiple control IC, and defeated
Then a signal out is realized by signal output interface and peripheral unit and is communicated to connect.
As further scheme of the invention: the capacitance touch screen further includes the protection being set on the electrically-conductive backing plate
Glass.
Existing capacitance touch screen needs to arrange a plurality of signal transmssion line during the electric connection of electrically-conductive backing plate and IC,
The space of a large amount of capacitance touch screen is occupied in wiring process, and multiple interconnecting pieces are connected with by a plurality of signal output line
Position, to be easy to cause poor contact, and due to excessive wiring and connector, is easy to cause user's wrong plug.With the prior art
It compares, the solution have the advantages that: control IC is placed directly onto the edge placement of electrically-conductive backing plate by the present invention, and of the invention
Control IC be it is multiple, the volume of control IC of the invention in this way can be arranged small and exquisite, tested, in production process actual,
Research staff's discovery, the vacant position in electrically-conductive backing plate edge can install fixed control IC of the invention in process of production, in addition,
Since present invention control IC is placed directly onto the edge placement of electrically-conductive backing plate, such electrically-conductive backing plate is passing through signal transmssion line and control
During IC processed is electrically connected, it is only necessary to control IC and electrically-conductive backing plate can be realized by shorter, less signal transmssion line
It is electrically connected, places excessive signal transmssion line compared to excessive space is arranged around electrically-conductive backing plate edge, the present invention can
Greatly save the space around electrically-conductive backing plate.Meanwhile the present invention also passes through connecting line and is connected with each other each control IC, by institute
Some control IC are connected together, and are then connected on a signal output interface, thus facilitate signal output interface into
Row is electrically connected cooperation.During each control IC is connected with each other, it is only necessary to which several connecting lines can be realized, thus each
Being routed between control IC can be realized, without additional wiring, thus without the additional space for occupying electrically-conductive backing plate edge, thus
Realize the purpose for saving electrically-conductive backing plate space.Since multiple controls are directly arranged in the present invention around the edge of electrically-conductive backing plate
IC, without excessive or too long wiring, compares existing skill so as to be directly realized by the electric connection of control IC and electrically-conductive backing plate
Art avoids causing bad connection because connecting portion is excessive without excessive complicated cumbersome wiring.In addition, the present invention due to
It is being carried out without excessive wiring so that the overall structure of capacitance touch screen is simple during connecting each control IC
During grafting, since structure is simple, just it is easily achieved mating, can be also completed without stronger professional knowledge, greatly
Big is user-friendly.
Detailed description of the invention
Fig. 1 is a kind of existing structural schematic diagram of capacitance touch screen；
Fig. 2 is the structural schematic diagram of existing another capacitance touch screen；
Fig. 3 is the structural schematic diagram of capacitance touch screen of the embodiment of the present invention.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
In the description of the present invention, it is to be understood that, term " center ", " transverse direction ", "upper", "lower", "left", "right",
The orientation or positional relationship of the instructions such as "vertical", "horizontal", "top", "bottom", "inner", "outside" be orientation based on the figure or
Positional relationship is merely for convenience of description of the present invention and simplification of the description, rather than the device or element of indication or suggestion meaning must
There must be specific orientation, be constructed and operated in a specific orientation, therefore be not considered as limiting the invention.In addition, art
Language " first ", " second " are used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance or implicitly indicate institute
The quantity of the technical characteristic of instruction." first " is defined as a result, the feature of " second " can explicitly or implicitly include one
Or more this feature.In the description of the present invention, unless otherwise indicated, the meaning of " plurality " is two or more.
In addition, term " includes " and its any deformation, it is intended that cover and non-exclusive include.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " installation ", " phase
Even ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or be integrally connected；It can
To be mechanical connection, it is also possible to be electrically connected；It can be directly connected, can also can be indirectly connected through an intermediary
Connection inside two elements.For the ordinary skill in the art, above-mentioned term can be understood at this with concrete condition
Concrete meaning in invention.
In the present invention, capacitance-type touch screen technology is worked using the electric current induction of human body.Capacitance touch
Screen is MULTILAYER COMPOSITE circuit layer, each interlayer be respectively coated with one layer of conductive materials (such as nano silver, ITO, metal wire, metal grill,
Conducting polymer etc.), for the conductive coating in interlayer as working face, surrounding draws multiple electrodes.When finger is touched in metal layer
When upper, due to human body electric field, user and touch screen surface are formed with a coupled capacitor, and for high-frequency current, capacitor is
Direct conductor, then finger siphons away the electric current of a very little from contact point.This electric current is respectively from the electricity of touch screen touched
Outflow, controller are accurately calculated by being compared to multiple electrodes according to current ratio in extremely, obtain the position of touch point.
The capacitance touch screen of the embodiment of the present invention is described below with reference to Fig. 3.
As shown in figure 3, the present invention discloses a kind of capacitance touch screen comprising electrically-conductive backing plate 310 and setting are in the conduction
The induction channels 320 on 310 surface of substrate, the induction channels 320 be it is a plurality of, arranged for interval is on 310 surface of electrically-conductive backing plate
On, 310 edge of electrically-conductive backing plate is provided with multiple control IC340, and multiple control IC340 pass through signal transmssion line respectively
330 connect with the electrically-conductive backing plate 310, and multiple control IC340 pass through connecting line 370 between each other, and to be connected to a signal defeated
Outgoing interface 350.
Existing capacitance touch screen needs to arrange a plurality of signal transmssion line during the electric connection of electrically-conductive backing plate and IC,
The space of a large amount of capacitance touch screen is occupied in wiring process, and multiple interconnecting pieces are connected with by a plurality of signal output line
Position, to be easy to cause poor contact, and due to excessive wiring and connector, is easy to cause user's wrong plug.With the prior art
It compares, the solution have the advantages that: control IC is placed directly onto the edge placement of electrically-conductive backing plate by the present invention, and of the invention
Control IC be it is multiple, the volume of control IC of the invention in this way can be arranged small and exquisite, tested, in production process actual,
Research staff's discovery, the vacant position in electrically-conductive backing plate edge can install fixed control IC of the invention in process of production, in addition,
Since present invention control IC is placed directly onto the edge placement of electrically-conductive backing plate, such electrically-conductive backing plate is passing through signal transmssion line and control
During IC processed is electrically connected, it is only necessary to control IC and electrically-conductive backing plate can be realized by shorter, less signal transmssion line
It is electrically connected, places excessive signal transmssion line compared to excessive space is arranged around electrically-conductive backing plate edge, the present invention can
Greatly save the space around electrically-conductive backing plate.Meanwhile the present invention also passes through connecting line and is connected with each other each control IC, by institute
Some control IC are connected together, and are then connected on a signal output interface, thus facilitate signal output interface into
Row is electrically connected cooperation.During each control IC is connected with each other, it is only necessary to which several connecting lines can be realized, thus each
Being routed between control IC can be realized, without additional wiring, thus without the additional space for occupying electrically-conductive backing plate edge, thus
Realize the purpose for saving electrically-conductive backing plate space.Since multiple controls are directly arranged in the present invention around the edge of electrically-conductive backing plate
IC, without excessive or too long wiring, compares existing skill so as to be directly realized by the electric connection of control IC and electrically-conductive backing plate
Art avoids causing bad connection because connecting portion is excessive without excessive complicated cumbersome wiring.In addition, the present invention due to
It is being carried out without excessive wiring so that the overall structure of capacitance touch screen is simple during connecting each control IC
During grafting, since structure is simple, just it is easily achieved mating, can be also completed without stronger professional knowledge, greatly
Big is user-friendly.
Further, the electrically-conductive backing plate edge is additionally provided with a master control IC, and it is defeated that the master control IC is set to the signal
At outgoing interface (350) position, multiple control IC are connected to the master control IC, are arranged a master control IC, and by multiple control IC
It is connected at master control IC, that is, the control IC of electrically-conductive backing plate periphery is pooled to master control IC by connecting line, thus IC pairs of master control
The data-signal etc. of multiple control IC is analyzed and processed, and exports a signal, then passes through signal output interface and peripheral hardware list
Member realizes communication connection.Certainly, master control IC can also be provided directly as signal output interface, controls multiple in this way by the present embodiment
IC processed is directly pooled to master control IC, and then, master control IC can be realized directly with peripheral unit and be communicated to connect.
Further, the capacitance touch screen further includes the protection glass 360 being set on the electrically-conductive backing plate.
In the present embodiment, multiple IC and master control IC of control can be arranged in one side position in electrically-conductive backing plate, can also
It, can also be thirdly multiple IC and master of control be arranged in side multiple IC and master control IC of control are arranged in its two side position
IC is controlled, multiple IC and master control IC of control can also be set in its four side position.It should be noted that for art technology
For personnel, the present embodiment arranges multiple IC and master control IC of control all at this regardless of several sides around electrically-conductive backing plate
In the protection scope of invention.
It is obvious to a person skilled in the art that invention is not limited to the details of the above exemplary embodiments, Er Qie
In the case where without departing substantially from spirit or essential attributes of the invention, the present invention can be realized in other specific forms.Therefore, no matter
From the point of view of which point, the present embodiments are to be considered as illustrative and not restrictive, and the scope of the present invention is by appended power
Benefit requires rather than above description limits, it is intended that all by what is fallen within the meaning and scope of the equivalent elements of the claims
Variation is included within the present invention.Any reference signs in the claims should not be construed as limiting the involved claims.
In addition, it should be understood that although this specification is described in terms of embodiments, but not each embodiment is only wrapped
Containing an independent technical solution, this description of the specification is merely for the sake of clarity, and those skilled in the art should
It considers the specification as a whole, the technical solutions in the various embodiments may also be suitably combined, forms those skilled in the art
The other embodiments being understood that.
Claims (2)
1. a kind of capacitance touch screen, including multilayer conductive substrate (310) and the induction on each layer electrically-conductive backing plate surface is set
Channel (320), which is characterized in that the induction channels (320) be it is a plurality of, arranged for interval is on the electrically-conductive backing plate (310) surface
On, electrically-conductive backing plate (310) edge is provided with multiple control IC (340), and multiple control IC (340) pass through signal respectively
Transmission line (330) is connect with the electrically-conductive backing plate (310), and multiple control IC pass through connecting line (370) connection between each other
To a signal output interface (350)；The electrically-conductive backing plate edge is additionally provided with master control an IC, the master control IC and is set to the letter
At number output interface (350) position, multiple control IC are connected to the master control IC；Multiple control IC are set to described
Any side or any two sides or any three side of electrically-conductive backing plate or four sides, a master control IC are set to the electrically-conductive backing plate
Any side.
2. capacitance touch screen as described in claim 1, which is characterized in that the capacitance touch screen further includes being set to described lead
Protection glass (360) on electric substrate (310).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610195095.6A CN105892777B (en) | 2016-03-31 | 2016-03-31 | A kind of capacitance touch screen |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610195095.6A CN105892777B (en) | 2016-03-31 | 2016-03-31 | A kind of capacitance touch screen |
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| Publication Number | Publication Date |
|---|---|
| CN105892777A CN105892777A (en) | 2016-08-24 |
| CN105892777B true CN105892777B (en) | 2019-08-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610195095.6A Active CN105892777B (en) | 2016-03-31 | 2016-03-31 | A kind of capacitance touch screen |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019084779A1 (en) * | 2017-10-31 | 2019-05-09 | 深圳芯启航科技有限公司 | Array circuit for sensor, and smart phone |
| CN112256159B (en) * | 2020-11-16 | 2024-06-14 | 童宗伟 | Capacitive pressure touch device and method |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104461113A (en) * | 2013-09-23 | 2015-03-25 | 乐金显示有限公司 | Touch sensor integrated type display device |
| TWM509934U (en) * | 2014-10-17 | 2015-10-01 | Raydium Semiconductor Corp | In-cell mutual-capacitive touch panel |
| CN205486042U (en) * | 2016-03-31 | 2016-08-17 | 黄良杰 | Capacitive touch screen |
-
2016
- 2016-03-31 CN CN201610195095.6A patent/CN105892777B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104461113A (en) * | 2013-09-23 | 2015-03-25 | 乐金显示有限公司 | Touch sensor integrated type display device |
| TWM509934U (en) * | 2014-10-17 | 2015-10-01 | Raydium Semiconductor Corp | In-cell mutual-capacitive touch panel |
| CN205486042U (en) * | 2016-03-31 | 2016-08-17 | 黄良杰 | Capacitive touch screen |
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| Publication number | Publication date |
|---|---|
| CN105892777A (en) | 2016-08-24 |
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| TA01 | Transfer of patent application right |
Effective date of registration: 20161025 Address after: 518057 Guangdong Province, Shenzhen Nanshan Science and Technology Park in Southern District Yuexing a Hong Kong University Science & Technology No. 9 and building 412 Applicant after: China Tech Powerise Technology Co., Ltd. of Shenzhen Address before: Hongqi Road high Leshan town 445600 Hubei province Enshi Tujia and Miao Autonomous Prefecture Xianfeng County No. 5 Lane 1 Applicant before: Huang Liangjie |
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Address after: Longgang District of Shenzhen City, Guangdong province 518118 Baolong Industrial Park Qingfeng Road No. 39 Building 8 digital precision factory Applicant after: China Tech Powerise Technology Co., Ltd. of Shenzhen Address before: 518057 Guangdong Province, Shenzhen Nanshan Science and Technology Park in Southern District Yuexing a Hong Kong University Science & Technology No. 9 and building 412 Applicant before: China Tech Powerise Technology Co., Ltd. of Shenzhen |
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Effective date of registration: 20181207 Address after: 223800 18 Laser Industrial Park Area A in Sucheng District, Suqian City, Jiangsu Province Applicant after: Jiangsu Huake Creative Intelligence Technology Co., Ltd. Address before: 518118, 8th Floor, Qingfeng Avenue, Baolong Industrial Park, Longgang District, Shenzhen City, Guangdong Province Applicant before: China Tech Powerise Technology Co., Ltd. of Shenzhen |
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