CN208969640U - A kind of capacitance touch screen - Google Patents
A kind of capacitance touch screen Download PDFInfo
- Publication number
- CN208969640U CN208969640U CN201821371634.8U CN201821371634U CN208969640U CN 208969640 U CN208969640 U CN 208969640U CN 201821371634 U CN201821371634 U CN 201821371634U CN 208969640 U CN208969640 U CN 208969640U
- Authority
- CN
- China
- Prior art keywords
- touch screen
- capacitance touch
- circuit board
- conducting medium
- flexible circuit
- 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.)
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Classifications
-
- 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
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K1/00—Printed circuits
- H05K1/02—Details
- H05K1/11—Printed elements for providing electric connections to or between printed circuits
Abstract
The utility model provides a kind of capacitance touch screen, and including flexible circuit board and the conducting medium being filled in above and below flexible circuit board, flexible circuit board includes substrate, and the upper surface of substrate is covered with the first copper foil being in contact with conducting medium.Based on above structure, the characteristics of being greater than upper surface in conjunction with the internal stress that flexible circuit board lower surface generates, to under the influence of external force, environmental stress or when low-temperature shrink occurs for conducting medium, on the one hand, first copper foil will not be separated with conducting medium, on the other hand, the circuit that the separation of substrate lower surface and conducting medium not will cause capacitance touch screen disconnects, on the normal use of capacitance touch screen without influence.Therefore, such structure of flexible circuit board improves the stability of capacitance touch screen, compared with the prior art, the capacitance touch screen is hardly damaged, long service life.
Description
Technical field
The utility model relates to touch screen technology field more particularly to a kind of capacitance touch screens.
Background technique
Existing large scale (55 cun or more) capacitance touch screen, between the lower surface and conducting medium of flexible circuit board
Equipped with copper foil, and upper surface is then directly in contact with conducting medium, since capacitance touch screen by external force when being influenced, flexible electrical
The internal stress that road plate lower surface generates is greater than upper surface, along with the binding force of conducting medium and substrate of flexible circuit board is big,
And it is small with the binding force of copper foil, thus under the influence of external force or when low-temperature shrink occurs for conducting medium, copper foil can be situated between with conduction
Matter occurs to separate and generates gap, and then the circuit of capacitance touch screen is caused to disconnect, disabler.
Summary of the invention
In order to solve the above technical problems, the utility model provides a kind of capacitance touch screen, which stablizes,
It is hardly damaged, long service life.
Based on this, the utility model provides a kind of capacitance touch screen, including flexible circuit board and is filled in described soft
Property circuit board and lower section conducting medium, the flexible circuit board includes substrate, the upper surface of the substrate be covered with
The first copper foil that the conducting medium is in contact.
Preferably, the flexible circuit board is equipped with lead.
Preferably, the lead is drawn from first copper foil.
Preferably, the lower surface of the substrate is covered with the second copper foil being in contact with the conducting medium, institute
Lead is stated to draw from second copper foil.
Preferably, the substrate is equipped with the through-hole penetrated from the upper surface to the lower surface, is filled in the through-hole
The conducting medium, first copper foil and second copper foil are electrically connected by the conducting medium filled in the through-hole.
Preferably, the flexible circuit board is equipped with the aperture for pouring into the conducting medium.
Preferably, the capacitance touch screen further includes having nano-silver thread conductive layer, the nano-silver thread conductive layer
It is led set on the lower section of the flexible circuit board, and between the nano-silver thread conductive layer and the flexible circuit board filled with described
Dielectric.
Preferably, the substrate is PET base material.
Preferably, the conducting medium is conductive silver paste.
Implement the utility model embodiment, has the following beneficial effects:
Capacitance touch screen provided by the utility model includes flexible circuit board and is filled in above flexible circuit board under
The conducting medium of side, flexible circuit board includes substrate, and the upper surface of substrate is covered with the first copper foil being in contact with conducting medium.
Based on above structure, the characteristics of being greater than upper surface in conjunction with the internal stress that flexible circuit board lower surface generates, thus external force,
Under the influence of environmental stress or when low-temperature shrink occurs for conducting medium, on the one hand, the first copper foil and conducting medium will not occur point
From on the other hand, the circuit that the separation of substrate lower surface and conducting medium not will cause capacitance touch screen disconnects, to capacitance touch
The normal use of screen is without influence.Therefore, such structure of flexible circuit board improves the stability of capacitance touch screen, with existing skill
Art is compared, which is hardly damaged, long service life.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the capacitance touch screen of the utility model embodiment one.
Fig. 2 is the structural schematic diagram of the capacitance touch screen of the utility model embodiment two.
Description of symbols:
1, flexible circuit board, 1a, substrate, 1a1, through-hole, 1b, the first copper foil, 1c, the second copper foil, 11, aperture, 2, nanometer
Silver wire conductive layer, 3, conducting medium.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without creative efforts
All other embodiment obtained, fall within the protection scope of the utility model.
In the description of the utility model embodiment, it is to be understood that term " on ", "lower", "left", "right", "top",
The orientation or positional relationship of the instructions such as "bottom" is to be based on the orientation or positional relationship shown in the drawings, and is merely for convenience of describing this reality
It is described with novel with simplified, rather than the device or element of indication or suggestion meaning must have a particular orientation, with specific
Orientation construction and operation, therefore should not be understood as limiting the present invention.
Embodiment one
As shown in Figure 1, the utility model embodiment provides a kind of capacitance touch screen, mainly includes flexible circuit board 1 and receive
Rice silver wire conductive layer 2, nano-silver thread conductive layer 2 are set to the lower section of flexible circuit board 1, and flexible circuit board 1 is equipped with for pouring into
The aperture 11 of conducting medium 3, conducting medium 3 are poured into from aperture 11, will be filled out between nano-silver thread conductive layer 2 and flexible circuit board 1
It is full of, also, conducting medium 3 is overflowed from aperture 11, also forms the covering of conducting medium 3 in the top of flexible circuit board 1.It is flexible
Circuit board 1 includes substrate 1a, and the upper surface of substrate 1a is covered with the first copper foil 1b being in contact with conducting medium 3, flexible circuit
The lead of plate 1 is drawn from the first copper foil 1b.
Based on above structure, since capacitance touch screen by external force when being influenced, 1 lower surface of flexible circuit board is generated interior
Portion's stress is greater than upper surface, thus under the influence of external force, environmental stress or when low-temperature shrink occurs for conducting medium 3, on the one hand,
First copper foil 1b will not be separated with conducting medium 3, ensure that the circuit conducting of capacitance touch screen, on the other hand, substrate 1a
The separation of lower surface and conducting medium 3 not will cause the circuit disconnection of capacitance touch screen, to the normal use of capacitance touch screen without
It influences.Therefore, such structure of flexible circuit board 1 improves the stability of capacitance touch screen, compared with the prior art, the capacitor
Touch screen is hardly damaged, long service life.
Embodiment two
As shown in Fig. 2, the difference between this embodiment and the first embodiment lies in, the lower surface of substrate 1a also covers in the present embodiment
There is the second copper foil 1c being in contact with conducting medium 3, the lead of flexible circuit board 1 is drawn from the second copper foil 1c, and substrate 1a is equipped with
The through-hole 1a1 penetrated from the upper surface to the lower surface, through-hole 1a1 can be looping pit, or arcuate socket is filled out in through-hole 1a1
Filled with conducting medium 3, the first copper foil 1b and the second copper foil 1c are electrically connected by the conducting medium 3 filled in through-hole 1a1.Based on upper
State structure, on the one hand, the first copper foil 1b will not be separated with conducting medium 3, ensure that the circuit conducting of capacitance touch screen, separately
On the one hand, although the second copper foil 1c is separated with conducting medium 3, due between the first copper foil 1b and the second copper foil 1c
It is mutual conduction, to the circuit of capacitance touch screen will not be caused to disconnect, on the normal use of capacitance touch screen without influence.Cause
This, as 1 structure of the flexible circuit board effect achieved in embodiment one, the structure of Dual-layer copper foil improves capacitor
The stability of touch screen, compared with the prior art, the capacitance touch screen is hardly damaged, long service life.
In addition, it is necessary to which, it is noted that the substrate 1a mentioned in above-mentioned two embodiment uses PET (Polyethylene
Terephthalate) substrate, conducting medium 3 use the superior conductive silver paste of conductive performance.
To sum up, the utility model embodiment provides a kind of capacitance touch screen, including flexible circuit board 1 and is filled in flexibility
Conducting medium 3 above and below circuit board 1, flexible circuit board 1 include substrate 1a, and the upper surface of substrate 1a is covered with the first bronze medal
Foil 1b or upper and lower surface have been covered each by the first copper foil 1b and the second copper foil 1c.Compared with the prior art, the capacitance touch screen
It can stablize, be hardly damaged, long service life.
It should be understood that various information are described in the utility model using term " first ", " second " etc., but these
Information should not necessarily be limited by these terms, these terms are only used to for same type of information being distinguished from each other out.For example, not departing from this
In the case where utility model range, " first " information can also be referred to as " second " information, and similar, " second " information can also be with
Referred to as " first " information.
The above is preferred embodiments of the present invention, it is noted that for the ordinary skill of the art
For personnel, without departing from the principle of this utility model, several improvement and deformations can also be made, these improve and become
Shape is also considered as the protection scope of the utility model.
Claims (9)
1. a kind of capacitance touch screen, which is characterized in that including flexible circuit board and be filled in above the flexible circuit board and
The conducting medium of lower section, the flexible circuit board include substrate, and the upper surface of the substrate is covered with and the conducting medium phase
First copper foil of contact.
2. capacitance touch screen according to claim 1, which is characterized in that the flexible circuit board is equipped with lead.
3. capacitance touch screen according to claim 2, which is characterized in that the lead is drawn from first copper foil.
4. capacitance touch screen according to claim 2, which is characterized in that the lower surface of the substrate is covered with leads with described
The second copper foil that dielectric is in contact, the lead are drawn from second copper foil.
5. capacitance touch screen according to claim 4, which is characterized in that the substrate is equipped with and penetrates through from upper surface to following table
The through-hole in face, the through-hole is interior to be filled with the conducting medium, and first copper foil and second copper foil pass through the through-hole
The conducting medium of interior filling is electrically connected.
6. capacitance touch screen according to claim 1, which is characterized in that the flexible circuit board is equipped with described for pouring into
The aperture of conducting medium.
7. capacitance touch screen according to claim 1, which is characterized in that the capacitance touch screen further includes having nano-silver thread
Conductive layer, the nano-silver thread conductive layer be set to the flexible circuit board lower section, and the nano-silver thread conductive layer with it is described
The conducting medium is filled between flexible circuit board.
8. capacitance touch screen according to claim 1-7, which is characterized in that the substrate is PET base material.
9. capacitance touch screen according to claim 1-7, which is characterized in that the conducting medium is conductive silver
Slurry.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821371634.8U CN208969640U (en) | 2018-08-23 | 2018-08-23 | A kind of capacitance touch screen |
| PCT/CN2018/113651 WO2020037829A1 (en) | 2018-08-23 | 2018-11-02 | Capacitive touch screen |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821371634.8U CN208969640U (en) | 2018-08-23 | 2018-08-23 | A kind of capacitance touch screen |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208969640U true CN208969640U (en) | 2019-06-11 |
Family
ID=66753800
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821371634.8U Active CN208969640U (en) | 2018-08-23 | 2018-08-23 | A kind of capacitance touch screen |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN208969640U (en) |
| WO (1) | WO2020037829A1 (en) |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0927665A (en) * | 1995-07-10 | 1997-01-28 | Sony Chem Corp | Constant-resistance flexible circuit board and manufacture thereof |
| CN107172808A (en) * | 2016-03-08 | 2017-09-15 | 讯芯电子科技（中山）有限公司 | Two-sided direct copper plating ceramic circuit board and its manufacture method |
| CN206461832U (en) * | 2017-02-07 | 2017-09-01 | 苏州维信电子有限公司 | It is adapted to the FPC of high density winding displacement |
| CN206461831U (en) * | 2017-02-07 | 2017-09-01 | 苏州维信电子有限公司 | Double-faced flexible wiring board |
-
2018
- 2018-08-23 CN CN201821371634.8U patent/CN208969640U/en active Active
- 2018-11-02 WO PCT/CN2018/113651 patent/WO2020037829A1/en active Application Filing
Also Published As
| Publication number | Publication date |
|---|---|
| WO2020037829A1 (en) | 2020-02-27 |
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| GR01 | Patent grant |